Finding the Third Proportional to 1,225,476 and 2,647,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225,476 : 2,647,728 = 2,647,728 : x
2. Step 2: Convert to fraction form
   1,225,476/2,647,728 = 2,647,728/x
3. Step 3: Cross multiply
   1,225,476x = 2,647,728 × 2,647,728
4. Step 4: Simplify right side
   1,225,476x = 7,010,463,561,984
5. Step 5: Solve for x
   x = 7,010,463,561,984/1,225,476
6. Step 6: Final answer
   x = 5,720,604.53