Finding the Third Proportional to 3,494,451 and 7,474,689

Step by Step Solution

1. Step 1: Write the proportion equation
   3,494,451 : 7,474,689 = 7,474,689 : x
2. Step 2: Convert to fraction form
   3,494,451/7,474,689 = 7,474,689/x
3. Step 3: Cross multiply
   3,494,451x = 7,474,689 × 7,474,689
4. Step 4: Simplify right side
   3,494,451x = 55,870,975,646,721
5. Step 5: Solve for x
   x = 55,870,975,646,721/3,494,451
6. Step 6: Final answer
   x = 15,988,484.50