how add a third condition to IF statement?

i have a condition here line 175 and im trying to add a 3rd condition if ping is more than 200 then display "iconko"

i have tried this and it didn't work

if(result != null)
        {
            var ping = parseFloat(result[1]);
            if(ping > 100.0)
            {
                this.createPingIcon('iconslow');
            }
            else if(ping > 200.0)
            {
                this.createPingIcon('iconko');
            }
    else 
    {
                this.createPingIcon('iconok');
            }
        }