Finding the Third Proportional to 3,957.13 and 8,443.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,957.13 : 8,443.88 = 8,443.88 : x
2. Step 2: Convert to fraction form
   3,957.13/8,443.88 = 8,443.88/x
3. Step 3: Cross multiply
   3,957.13x = 8,443.88 × 8,443.88
4. Step 4: Simplify right side
   3,957.13x = 71,299,025.02
5. Step 5: Solve for x
   x = 71,299,025.02/3,957.13
6. Step 6: Final answer
   x = 18,017.89