Finding the Third Proportional to 4,073,562 and 8,478,544

Step by Step Solution

1. Step 1: Write the proportion equation
   4,073,562 : 8,478,544 = 8,478,544 : x
2. Step 2: Convert to fraction form
   4,073,562/8,478,544 = 8,478,544/x
3. Step 3: Cross multiply
   4,073,562x = 8,478,544 × 8,478,544
4. Step 4: Simplify right side
   4,073,562x = 71,885,708,359,936
5. Step 5: Solve for x
   x = 71,885,708,359,936/4,073,562
6. Step 6: Final answer
   x = 17,646,891.92