Finding the Third Proportional to 72,991.97 and 156,895.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,991.97 : 156,895.31 = 156,895.31 : x
2. Step 2: Convert to fraction form
   72,991.97/156,895.31 = 156,895.31/x
3. Step 3: Cross multiply
   72,991.97x = 156,895.31 × 156,895.31
4. Step 4: Simplify right side
   72,991.97x = 24,616,139,084.47
5. Step 5: Solve for x
   x = 24,616,139,084.47/72,991.97
6. Step 6: Final answer
   x = 337,244.49