Finding the Third Proportional to 4,385.25 and 9,499.13

Step by Step Solution

1. Step 1: Write the proportion equation
   4,385.25 : 9,499.13 = 9,499.13 : x
2. Step 2: Convert to fraction form
   4,385.25/9,499.13 = 9,499.13/x
3. Step 3: Cross multiply
   4,385.25x = 9,499.13 × 9,499.13
4. Step 4: Simplify right side
   4,385.25x = 90,233,375.77
5. Step 5: Solve for x
   x = 90,233,375.77/4,385.25
6. Step 6: Final answer
   x = 20,576.56