Finding the Third Proportional to 31,417.88 and 67,757.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,417.88 : 67,757.25 = 67,757.25 : x
2. Step 2: Convert to fraction form
   31,417.88/67,757.25 = 67,757.25/x
3. Step 3: Cross multiply
   31,417.88x = 67,757.25 × 67,757.25
4. Step 4: Simplify right side
   31,417.88x = 4,591,044,927.56
5. Step 5: Solve for x
   x = 4,591,044,927.56/31,417.88
6. Step 6: Final answer
   x = 146,128.44