Finding the Third Proportional to 5,807.25 and 8,716.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,807.25 : 8,716.50 = 8,716.50 : x
2. Step 2: Convert to fraction form
   5,807.25/8,716.50 = 8,716.50/x
3. Step 3: Cross multiply
   5,807.25x = 8,716.50 × 8,716.50
4. Step 4: Simplify right side
   5,807.25x = 75,977,372.25
5. Step 5: Solve for x
   x = 75,977,372.25/5,807.25
6. Step 6: Final answer
   x = 13,083.19