Finding the Third Proportional to 1,708.59 and 3,861.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708.59 : 3,861.42 = 3,861.42 : x
2. Step 2: Convert to fraction form
   1,708.59/3,861.42 = 3,861.42/x
3. Step 3: Cross multiply
   1,708.59x = 3,861.42 × 3,861.42
4. Step 4: Simplify right side
   1,708.59x = 14,910,578.90
5. Step 5: Solve for x
   x = 14,910,578.90/1,708.59
6. Step 6: Final answer
   x = 8,726.81