Finding the Third Proportional to 3,994,772 and 8,736,862

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994,772 : 8,736,862 = 8,736,862 : x
2. Step 2: Convert to fraction form
   3,994,772/8,736,862 = 8,736,862/x
3. Step 3: Cross multiply
   3,994,772x = 8,736,862 × 8,736,862
4. Step 4: Simplify right side
   3,994,772x = 76,332,757,607,044
5. Step 5: Solve for x
   x = 76,332,757,607,044/3,994,772
6. Step 6: Final answer
   x = 19,108,163.77