Finding the Third Proportional to 1,211,728 and 2,548,808

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,728 : 2,548,808 = 2,548,808 : x
2. Step 2: Convert to fraction form
   1,211,728/2,548,808 = 2,548,808/x
3. Step 3: Cross multiply
   1,211,728x = 2,548,808 × 2,548,808
4. Step 4: Simplify right side
   1,211,728x = 6,496,422,220,864
5. Step 5: Solve for x
   x = 6,496,422,220,864/1,211,728
6. Step 6: Final answer
   x = 5,361,287.53