Finding the Third Proportional to 3,752.30 and 8,685.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,752.30 : 8,685.91 = 8,685.91 : x
2. Step 2: Convert to fraction form
   3,752.30/8,685.91 = 8,685.91/x
3. Step 3: Cross multiply
   3,752.30x = 8,685.91 × 8,685.91
4. Step 4: Simplify right side
   3,752.30x = 75,445,103.10
5. Step 5: Solve for x
   x = 75,445,103.10/3,752.30
6. Step 6: Final answer
   x = 20,106.38