Finding the Third Proportional to 12,724.59 and 16,731.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.59 : 16,731.56 = 16,731.56 : x
2. Step 2: Convert to fraction form
   12,724.59/16,731.56 = 16,731.56/x
3. Step 3: Cross multiply
   12,724.59x = 16,731.56 × 16,731.56
4. Step 4: Simplify right side
   12,724.59x = 279,945,183.69
5. Step 5: Solve for x
   x = 279,945,183.69/12,724.59
6. Step 6: Final answer
   x = 22,000.32