Finding the Third Proportional to 10,020.59 and 15,515.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.59 : 15,515.30 = 15,515.30 : x
2. Step 2: Convert to fraction form
   10,020.59/15,515.30 = 15,515.30/x
3. Step 3: Cross multiply
   10,020.59x = 15,515.30 × 15,515.30
4. Step 4: Simplify right side
   10,020.59x = 240,724,437.12
5. Step 5: Solve for x
   x = 240,724,437.12/10,020.59
6. Step 6: Final answer
   x = 24,022.99