Finding the Third Proportional to 31,434.75 and 67,363.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,434.75 : 67,363.31 = 67,363.31 : x
2. Step 2: Convert to fraction form
   31,434.75/67,363.31 = 67,363.31/x
3. Step 3: Cross multiply
   31,434.75x = 67,363.31 × 67,363.31
4. Step 4: Simplify right side
   31,434.75x = 4,537,815,870.97
5. Step 5: Solve for x
   x = 4,537,815,870.97/31,434.75
6. Step 6: Final answer
   x = 144,356.67