Finding the Third Proportional to 3,866.06 and 8,874.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,866.06 : 8,874.56 = 8,874.56 : x
2. Step 2: Convert to fraction form
   3,866.06/8,874.56 = 8,874.56/x
3. Step 3: Cross multiply
   3,866.06x = 8,874.56 × 8,874.56
4. Step 4: Simplify right side
   3,866.06x = 78,757,859.57
5. Step 5: Solve for x
   x = 78,757,859.57/3,866.06
6. Step 6: Final answer
   x = 20,371.60