Finding the Third Proportional to 31,157,187.50 and 72,123,248

Step by Step Solution

1. Step 1: Write the proportion equation
   31,157,187.50 : 72,123,248 = 72,123,248 : x
2. Step 2: Convert to fraction form
   31,157,187.50/72,123,248 = 72,123,248/x
3. Step 3: Cross multiply
   31,157,187.50x = 72,123,248 × 72,123,248
4. Step 4: Simplify right side
   31,157,187.50x = 5,201,762,902,069,504
5. Step 5: Solve for x
   x = 5,201,762,902,069,504/31,157,187.50
6. Step 6: Final answer
   x = 166,952,261.08