Finding the Third Proportional to 3,940.88 and 7,426.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940.88 : 7,426.13 = 7,426.13 : x
2. Step 2: Convert to fraction form
   3,940.88/7,426.13 = 7,426.13/x
3. Step 3: Cross multiply
   3,940.88x = 7,426.13 × 7,426.13
4. Step 4: Simplify right side
   3,940.88x = 55,147,332.52
5. Step 5: Solve for x
   x = 55,147,332.52/3,940.88
6. Step 6: Final answer
   x = 13,993.68