Finding the Third Proportional to 4,055.91 and 8,695.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,055.91 : 8,695.69 = 8,695.69 : x
2. Step 2: Convert to fraction form
   4,055.91/8,695.69 = 8,695.69/x
3. Step 3: Cross multiply
   4,055.91x = 8,695.69 × 8,695.69
4. Step 4: Simplify right side
   4,055.91x = 75,614,981.10
5. Step 5: Solve for x
   x = 75,614,981.10/4,055.91
6. Step 6: Final answer
   x = 18,643.18