Finding the Third Proportional to 3,941,074 and 8,489,891

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,074 : 8,489,891 = 8,489,891 : x
2. Step 2: Convert to fraction form
   3,941,074/8,489,891 = 8,489,891/x
3. Step 3: Cross multiply
   3,941,074x = 8,489,891 × 8,489,891
4. Step 4: Simplify right side
   3,941,074x = 72,078,249,191,881
5. Step 5: Solve for x
   x = 72,078,249,191,881/3,941,074
6. Step 6: Final answer
   x = 18,288,986.50