Finding the biggest number among 3, I ran into problems for the last part as bolded

import java.util.Scanner;
class CurrencyExchange_1 {
 
public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    System.out.print("Input any 3 numbers");
    int firstnumber = sc.nextInt();
    int secondnumber = sc.nextInt();
    int thirdnumber = sc.nextInt();

    //Finding the bigger number
    if (firstnumber > secondnumber);
    if (firstnumber > thirdnumber ) {
        System.out.println("Biggest number is " +firstnumber);

    } else if (secondnumber > firstnumber);
    if (secondnumber > thirdnumber); {
        System.out.println("Biggest number is " +secondnumber);
    } **else if** (thirdnumber > firstnumber);
    if (thirdnumber > secondnumber); {
        System.out.println("Biggest number is " +thirdnumber);
    }
  }
}

For the bolded part, I originally wrote only without the conditions but it was an error. Even with the code as written above, an error prompts for <'else' without 'if'>. I am not too sure where when wrong as if I completely deleted the last "else" part, the code works perfectly. I was reading answers for other questions that <else {...}> can work perfectly when not all conditions are met but it seems to be incorrect for me. Please pardon my complicated code because I am currently learning the basics and I am required to solve it using what I know currently which is just the comparing part of programming.