Finding the Third Proportional to 3,465,760 and 7,728,405

Step by Step Solution

1. Step 1: Write the proportion equation
   3,465,760 : 7,728,405 = 7,728,405 : x
2. Step 2: Convert to fraction form
   3,465,760/7,728,405 = 7,728,405/x
3. Step 3: Cross multiply
   3,465,760x = 7,728,405 × 7,728,405
4. Step 4: Simplify right side
   3,465,760x = 59,728,243,844,025
5. Step 5: Solve for x
   x = 59,728,243,844,025/3,465,760
6. Step 6: Final answer
   x = 17,233,808.41