Finding the Third Proportional to 31,287.50 and 67,026.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,287.50 : 67,026.75 = 67,026.75 : x
2. Step 2: Convert to fraction form
   31,287.50/67,026.75 = 67,026.75/x
3. Step 3: Cross multiply
   31,287.50x = 67,026.75 × 67,026.75
4. Step 4: Simplify right side
   31,287.50x = 4,492,585,215.56
5. Step 5: Solve for x
   x = 4,492,585,215.56/31,287.50
6. Step 6: Final answer
   x = 143,590.42