Finding the Third Proportional to 11,515.92 and 25,222.64

Step by Step Solution

1. Step 1: Write the proportion equation
   11,515.92 : 25,222.64 = 25,222.64 : x
2. Step 2: Convert to fraction form
   11,515.92/25,222.64 = 25,222.64/x
3. Step 3: Cross multiply
   11,515.92x = 25,222.64 × 25,222.64
4. Step 4: Simplify right side
   11,515.92x = 636,181,600.10
5. Step 5: Solve for x
   x = 636,181,600.10/11,515.92
6. Step 6: Final answer
   x = 55,243.65