A village built a canal, dug the full length (2/5) on the first day, dug the first day (7/12) on the second day, and dug all the canals on the third day. 92 meters more than the next day, how many meters are dug per day on average?
某村建一条水渠，第一天挖了全长的(2/5)，第二天挖的是第一天的(7/12)，第三天全部挖完，已知第三天挖的比第二天多92米，平均每天挖多少米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(2/5) * (7/12)</gadget>
<output>7/30 = around 0.233333</output>

<gadget id="calculator">1 - (2/5) - (7/30) - (7/30)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">92 / (2/15)</gadget>
<output>690</output>

<gadget id="calculator">690 / 3</gadget>
<output>230</output>

<result>230</result>