Finding the Third Proportional to 3,866,540 and 5,681,460

Step by Step Solution

1. Step 1: Write the proportion equation
   3,866,540 : 5,681,460 = 5,681,460 : x
2. Step 2: Convert to fraction form
   3,866,540/5,681,460 = 5,681,460/x
3. Step 3: Cross multiply
   3,866,540x = 5,681,460 × 5,681,460
4. Step 4: Simplify right side
   3,866,540x = 32,278,987,731,600
5. Step 5: Solve for x
   x = 32,278,987,731,600/3,866,540
6. Step 6: Final answer
   x = 8,348,287.55