Finding the Third Proportional to 5,452.13 and 8,647.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,452.13 : 8,647.31 = 8,647.31 : x
2. Step 2: Convert to fraction form
   5,452.13/8,647.31 = 8,647.31/x
3. Step 3: Cross multiply
   5,452.13x = 8,647.31 × 8,647.31
4. Step 4: Simplify right side
   5,452.13x = 74,776,013.47
5. Step 5: Solve for x
   x = 74,776,013.47/5,452.13
6. Step 6: Final answer
   x = 13,715.02