Finding the Third Proportional to 31,347.47 and 67,807.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,347.47 : 67,807.92 = 67,807.92 : x
2. Step 2: Convert to fraction form
   31,347.47/67,807.92 = 67,807.92/x
3. Step 3: Cross multiply
   31,347.47x = 67,807.92 × 67,807.92
4. Step 4: Simplify right side
   31,347.47x = 4,597,914,269.01
5. Step 5: Solve for x
   x = 4,597,914,269.01/31,347.47
6. Step 6: Final answer
   x = 146,675.77