Finding the Third Proportional to 3,465,728 and 7,728,338

Step by Step Solution

1. Step 1: Write the proportion equation
   3,465,728 : 7,728,338 = 7,728,338 : x
2. Step 2: Convert to fraction form
   3,465,728/7,728,338 = 7,728,338/x
3. Step 3: Cross multiply
   3,465,728x = 7,728,338 × 7,728,338
4. Step 4: Simplify right side
   3,465,728x = 59,727,208,242,244
5. Step 5: Solve for x
   x = 59,727,208,242,244/3,465,728
6. Step 6: Final answer
   x = 17,233,668.72