Finding the Third Proportional to 11,509.88 and 25,216.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,509.88 : 25,216.31 = 25,216.31 : x
2. Step 2: Convert to fraction form
   11,509.88/25,216.31 = 25,216.31/x
3. Step 3: Cross multiply
   11,509.88x = 25,216.31 × 25,216.31
4. Step 4: Simplify right side
   11,509.88x = 635,862,416.10
5. Step 5: Solve for x
   x = 635,862,416.10/11,509.88
6. Step 6: Final answer
   x = 55,244.95