Finding the Third Proportional to 31,229,703 and 67,671,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,229,703 : 67,671,724.50 = 67,671,724.50 : x
2. Step 2: Convert to fraction form
   31,229,703/67,671,724.50 = 67,671,724.50/x
3. Step 3: Cross multiply
   31,229,703x = 67,671,724.50 × 67,671,724.50
4. Step 4: Simplify right side
   31,229,703x = 4,579,462,296,803,900
5. Step 5: Solve for x
   x = 4,579,462,296,803,900/31,229,703
6. Step 6: Final answer
   x = 146,638,035.49