Finding the Third Proportional to 3,494,518 and 7,474,805

Step by Step Solution

1. Step 1: Write the proportion equation
   3,494,518 : 7,474,805 = 7,474,805 : x
2. Step 2: Convert to fraction form
   3,494,518/7,474,805 = 7,474,805/x
3. Step 3: Cross multiply
   3,494,518x = 7,474,805 × 7,474,805
4. Step 4: Simplify right side
   3,494,518x = 55,872,709,788,025
5. Step 5: Solve for x
   x = 55,872,709,788,025/3,494,518
6. Step 6: Final answer
   x = 15,988,674.20