Finding the Third Proportional to 14,661.50 and 31,399

Step by Step Solution

1. Step 1: Write the proportion equation
   14,661.50 : 31,399 = 31,399 : x
2. Step 2: Convert to fraction form
   14,661.50/31,399 = 31,399/x
3. Step 3: Cross multiply
   14,661.50x = 31,399 × 31,399
4. Step 4: Simplify right side
   14,661.50x = 985,897,201
5. Step 5: Solve for x
   x = 985,897,201/14,661.50
6. Step 6: Final answer
   x = 67,243.95