Finding the Third Proportional to 31,327.50 and 67,581

Step by Step Solution

1. Step 1: Write the proportion equation
   31,327.50 : 67,581 = 67,581 : x
2. Step 2: Convert to fraction form
   31,327.50/67,581 = 67,581/x
3. Step 3: Cross multiply
   31,327.50x = 67,581 × 67,581
4. Step 4: Simplify right side
   31,327.50x = 4,567,191,561
5. Step 5: Solve for x
   x = 4,567,191,561/31,327.50
6. Step 6: Final answer
   x = 145,788.57