Finding the Third Proportional to 3,964.57 and 8,713.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.57 : 8,713.83 = 8,713.83 : x
2. Step 2: Convert to fraction form
   3,964.57/8,713.83 = 8,713.83/x
3. Step 3: Cross multiply
   3,964.57x = 8,713.83 × 8,713.83
4. Step 4: Simplify right side
   3,964.57x = 75,930,800.59
5. Step 5: Solve for x
   x = 75,930,800.59/3,964.57
6. Step 6: Final answer
   x = 19,152.34