Finding the Third Proportional to 71,724,619,689 and 156,960,585,518

Step by Step Solution

1. Step 1: Write the proportion equation
   71,724,619,689 : 156,960,585,518 = 156,960,585,518 : x
2. Step 2: Convert to fraction form
   71,724,619,689/156,960,585,518 = 156,960,585,518/x
3. Step 3: Cross multiply
   71,724,619,689x = 156,960,585,518 × 156,960,585,518
4. Step 4: Simplify right side
   71,724,619,689x = 24,636,625,406,153,392,652,288
5. Step 5: Solve for x
   x = 24,636,625,406,153,392,652,288/71,724,619,689
6. Step 6: Final answer
   x = 343,489,104,758.99