Finding the Third Proportional to 3,465,758 and 7,728,399

Step by Step Solution

1. Step 1: Write the proportion equation
   3,465,758 : 7,728,399 = 7,728,399 : x
2. Step 2: Convert to fraction form
   3,465,758/7,728,399 = 7,728,399/x
3. Step 3: Cross multiply
   3,465,758x = 7,728,399 × 7,728,399
4. Step 4: Simplify right side
   3,465,758x = 59,728,151,103,201
5. Step 5: Solve for x
   x = 59,728,151,103,201/3,465,758
6. Step 6: Final answer
   x = 17,233,791.60