Finding the Third Proportional to 31,931,325 and 69,907,788

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,325 : 69,907,788 = 69,907,788 : x
2. Step 2: Convert to fraction form
   31,931,325/69,907,788 = 69,907,788/x
3. Step 3: Cross multiply
   31,931,325x = 69,907,788 × 69,907,788
4. Step 4: Simplify right side
   31,931,325x = 4,887,098,823,052,944
5. Step 5: Solve for x
   x = 4,887,098,823,052,944/31,931,325
6. Step 6: Final answer
   x = 153,050,298.51