Finding the Third Proportional to 1,728,928 and 2,777,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728,928 : 2,777,920 = 2,777,920 : x
2. Step 2: Convert to fraction form
   1,728,928/2,777,920 = 2,777,920/x
3. Step 3: Cross multiply
   1,728,928x = 2,777,920 × 2,777,920
4. Step 4: Simplify right side
   1,728,928x = 7,716,839,526,400
5. Step 5: Solve for x
   x = 7,716,839,526,400/1,728,928
6. Step 6: Final answer
   x = 4,463,366.62