Finding the Third Proportional to 31,903,143.75 and 69,580,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,903,143.75 : 69,580,939.50 = 69,580,939.50 : x
2. Step 2: Convert to fraction form
   31,903,143.75/69,580,939.50 = 69,580,939.50/x
3. Step 3: Cross multiply
   31,903,143.75x = 69,580,939.50 × 69,580,939.50
4. Step 4: Simplify right side
   31,903,143.75x = 4,841,507,141,702,660
5. Step 5: Solve for x
   x = 4,841,507,141,702,660/31,903,143.75
6. Step 6: Final answer
   x = 151,756,428.13