Finding the Third Proportional to 12,499.88 and 17,580.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.88 : 17,580.38 = 17,580.38 : x
2. Step 2: Convert to fraction form
   12,499.88/17,580.38 = 17,580.38/x
3. Step 3: Cross multiply
   12,499.88x = 17,580.38 × 17,580.38
4. Step 4: Simplify right side
   12,499.88x = 309,069,585.14
5. Step 5: Solve for x
   x = 309,069,585.14/12,499.88
6. Step 6: Final answer
   x = 24,725.81