If a square and a rectangle with a width of 5 centimeters and an area of 204 square centimeters fit together to form a rectangle, what is the maximum area of the rectangle in square centimeters?
一个正方形与一个宽为5厘米，面积为204平方厘米的长方形恰好拼成一个长方形，这个长方形的面积最大是多少平方厘米．
<gadget id="calculator">40.8 + 5</gadget>
<output>45.8</output>

<gadget id="calculator">45.8 * 40.8</gadget>
<output>1_868.64</output>

<result>1_868.64</result>