Finding the Third Proportional to 8,078.80 and 18,131.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078.80 : 18,131.03 = 18,131.03 : x
2. Step 2: Convert to fraction form
   8,078.80/18,131.03 = 18,131.03/x
3. Step 3: Cross multiply
   8,078.80x = 18,131.03 × 18,131.03
4. Step 4: Simplify right side
   8,078.80x = 328,734,152.54
5. Step 5: Solve for x
   x = 328,734,152.54/8,078.80
6. Step 6: Final answer
   x = 40,690.96