Finding the Third Proportional to 31,425,676.50 and 67,654,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,425,676.50 : 67,654,165.50 = 67,654,165.50 : x
2. Step 2: Convert to fraction form
   31,425,676.50/67,654,165.50 = 67,654,165.50/x
3. Step 3: Cross multiply
   31,425,676.50x = 67,654,165.50 × 67,654,165.50
4. Step 4: Simplify right side
   31,425,676.50x = 4,577,086,109,501,390
5. Step 5: Solve for x
   x = 4,577,086,109,501,390/31,425,676.50
6. Step 6: Final answer
   x = 145,647,973.86