Finding the Third Proportional to 3,947,622 and 8,482,656

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,622 : 8,482,656 = 8,482,656 : x
2. Step 2: Convert to fraction form
   3,947,622/8,482,656 = 8,482,656/x
3. Step 3: Cross multiply
   3,947,622x = 8,482,656 × 8,482,656
4. Step 4: Simplify right side
   3,947,622x = 71,955,452,814,336
5. Step 5: Solve for x
   x = 71,955,452,814,336/3,947,622
6. Step 6: Final answer
   x = 18,227,543.78