Finding the Third Proportional to 31,465,948 and 68,469,380

Step by Step Solution

1. Step 1: Write the proportion equation
   31,465,948 : 68,469,380 = 68,469,380 : x
2. Step 2: Convert to fraction form
   31,465,948/68,469,380 = 68,469,380/x
3. Step 3: Cross multiply
   31,465,948x = 68,469,380 × 68,469,380
4. Step 4: Simplify right side
   31,465,948x = 4,688,055,997,584,400
5. Step 5: Solve for x
   x = 4,688,055,997,584,400/31,465,948
6. Step 6: Final answer
   x = 148,988,233.17