The two inner terms of the ratio are 10 and 6, and the two outer terms are x and 12. What is x?
比例的两个内项分别是10和6，两个外项分别是x和12，x是多少？
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<result>5</result>