Finding the Third Proportional to 3,952.55 and 8,699.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,952.55 : 8,699.59 = 8,699.59 : x
2. Step 2: Convert to fraction form
   3,952.55/8,699.59 = 8,699.59/x
3. Step 3: Cross multiply
   3,952.55x = 8,699.59 × 8,699.59
4. Step 4: Simplify right side
   3,952.55x = 75,682,863.45
5. Step 5: Solve for x
   x = 75,682,863.45/3,952.55
6. Step 6: Final answer
   x = 19,147.87