A conical billet has a volume of 18.84 cubic centimeters and a height of 4.5 cm. If two such billets are recast into a cylindrical billet, if the bottom area remains the same, what is the height of the recast cylindrical billet?
一个圆锥钢坯，体积是18.84立方厘米，高是4.5厘米，把2个这样的钢坯改铸成一个圆柱形钢坯，如果底面积不变，改铸后的圆柱形钢坯的高应是多少．
<gadget id="calculator">18.84 / 4.5</gadget>
<output>4.186667</output>

<gadget id="calculator">3 * 4.186667</gadget>
<output>12.560001</output>

<gadget id="calculator">2 / 12.560001</gadget>
<output>0.159236</output>

<gadget id="calculator">18.84 * 0.159236</gadget>
<output>3.000006</output>

<result>3.000006</result>