Finding the Third Proportional to 31,949,073 and 69,979,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,949,073 : 69,979,747.50 = 69,979,747.50 : x
2. Step 2: Convert to fraction form
   31,949,073/69,979,747.50 = 69,979,747.50/x
3. Step 3: Cross multiply
   31,949,073x = 69,979,747.50 × 69,979,747.50
4. Step 4: Simplify right side
   31,949,073x = 4,897,165,060,163,756
5. Step 5: Solve for x
   x = 4,897,165,060,163,756/31,949,073
6. Step 6: Final answer
   x = 153,280,349.02