Finding the Third Proportional to 11,025.56 and 16,639.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,025.56 : 16,639.88 = 16,639.88 : x
2. Step 2: Convert to fraction form
   11,025.56/16,639.88 = 16,639.88/x
3. Step 3: Cross multiply
   11,025.56x = 16,639.88 × 16,639.88
4. Step 4: Simplify right side
   11,025.56x = 276,885,440.02
5. Step 5: Solve for x
   x = 276,885,440.02/11,025.56
6. Step 6: Final answer
   x = 25,113.04