JSFiddle - React, Tailwind, and code Playground

HTML

<div id="first">0</div>
<div id="second">0</div>
<div id="third">0</div>

JavaScript

var first = 0;
var second = 0;
var third = 0;
var allNumbers = [325, 22, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17];
for (var i = 0; i < allNumbers.length; i++) {
    var current = allNumbers[i];

    if (current > first) {
        first = current;
    }

    if (current < first && current > second) {
        third = second;
        second = current;

    }
    if (current < second && current > third) {
        third = current;
    }


}
document.getElementById("first").innerHTML = first;
document.getElementById("second").innerHTML = second;
document.getElementById("third").innerHTML = third;