Finding the Third Proportional to 31,747,218 and 68,906,532

Step by Step Solution

1. Step 1: Write the proportion equation
   31,747,218 : 68,906,532 = 68,906,532 : x
2. Step 2: Convert to fraction form
   31,747,218/68,906,532 = 68,906,532/x
3. Step 3: Cross multiply
   31,747,218x = 68,906,532 × 68,906,532
4. Step 4: Simplify right side
   31,747,218x = 4,748,110,152,267,024
5. Step 5: Solve for x
   x = 4,748,110,152,267,024/31,747,218
6. Step 6: Final answer
   x = 149,559,881.19