Finding the Third Proportional to 31,591.90 and 67,626.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,591.90 : 67,626.14 = 67,626.14 : x
2. Step 2: Convert to fraction form
   31,591.90/67,626.14 = 67,626.14/x
3. Step 3: Cross multiply
   31,591.90x = 67,626.14 × 67,626.14
4. Step 4: Simplify right side
   31,591.90x = 4,573,294,895.83
5. Step 5: Solve for x
   x = 4,573,294,895.83/31,591.90
6. Step 6: Final answer
   x = 144,761.64