Finding the Third Proportional to 31,331 and 67,855

Step by Step Solution

1. Step 1: Write the proportion equation
   31,331 : 67,855 = 67,855 : x
2. Step 2: Convert to fraction form
   31,331/67,855 = 67,855/x
3. Step 3: Cross multiply
   31,331x = 67,855 × 67,855
4. Step 4: Simplify right side
   31,331x = 4,604,301,025
5. Step 5: Solve for x
   x = 4,604,301,025/31,331
6. Step 6: Final answer
   x = 146,956.72