The number of 4 consecutive natural numbers is 178, then these 4 consecutive natural numbers are arranged in ascending order, what is the third one?
4个连续自然数的是178，那么这4个连续自然数从小到大排列，排在第三位的是多少．
<gadget id="calculator">178 - 6</gadget>
<output>172</output>

<gadget id="calculator">172 / 4</gadget>
<output>43</output>

<gadget id="calculator">43 + 2</gadget>
<output>45</output>

<result>45</result>