Finding the Third Proportional to 3,998,544 and 8,707,008

Step by Step Solution

1. Step 1: Write the proportion equation
   3,998,544 : 8,707,008 = 8,707,008 : x
2. Step 2: Convert to fraction form
   3,998,544/8,707,008 = 8,707,008/x
3. Step 3: Cross multiply
   3,998,544x = 8,707,008 × 8,707,008
4. Step 4: Simplify right side
   3,998,544x = 75,811,988,312,064
5. Step 5: Solve for x
   x = 75,811,988,312,064/3,998,544
6. Step 6: Final answer
   x = 18,959,898.48