Finding the Third Proportional to 71,724,619,792 and 156,960,585,728

Step by Step Solution

1. Step 1: Write the proportion equation
   71,724,619,792 : 156,960,585,728 = 156,960,585,728 : x
2. Step 2: Convert to fraction form
   71,724,619,792/156,960,585,728 = 156,960,585,728/x
3. Step 3: Cross multiply
   71,724,619,792x = 156,960,585,728 × 156,960,585,728
4. Step 4: Simplify right side
   71,724,619,792x = 24,636,625,472,076,837,289,984
5. Step 5: Solve for x
   x = 24,636,625,472,076,837,289,984/71,724,619,792
6. Step 6: Final answer
   x = 343,489,105,184.84