Finding the Third Proportional to 31,561,540 and 67,998,644

Step by Step Solution

1. Step 1: Write the proportion equation
   31,561,540 : 67,998,644 = 67,998,644 : x
2. Step 2: Convert to fraction form
   31,561,540/67,998,644 = 67,998,644/x
3. Step 3: Cross multiply
   31,561,540x = 67,998,644 × 67,998,644
4. Step 4: Simplify right side
   31,561,540x = 4,623,815,585,838,736
5. Step 5: Solve for x
   x = 4,623,815,585,838,736/31,561,540
6. Step 6: Final answer
   x = 146,501,583.44