Finding the Third Proportional to 3,465,760 and 7,728,406

Step by Step Solution

1. Step 1: Write the proportion equation
   3,465,760 : 7,728,406 = 7,728,406 : x
2. Step 2: Convert to fraction form
   3,465,760/7,728,406 = 7,728,406/x
3. Step 3: Cross multiply
   3,465,760x = 7,728,406 × 7,728,406
4. Step 4: Simplify right side
   3,465,760x = 59,728,259,300,836
5. Step 5: Solve for x
   x = 59,728,259,300,836/3,465,760
6. Step 6: Final answer
   x = 17,233,812.87