Finding the Third Proportional to 31,473,141 and 67,729,254

Step by Step Solution

1. Step 1: Write the proportion equation
   31,473,141 : 67,729,254 = 67,729,254 : x
2. Step 2: Convert to fraction form
   31,473,141/67,729,254 = 67,729,254/x
3. Step 3: Cross multiply
   31,473,141x = 67,729,254 × 67,729,254
4. Step 4: Simplify right side
   31,473,141x = 4,587,251,847,396,516
5. Step 5: Solve for x
   x = 4,587,251,847,396,516/31,473,141
6. Step 6: Final answer
   x = 145,751,320.07