Finding the Third Proportional to 1,366,320 and 2,182,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,320 : 2,182,728 = 2,182,728 : x
2. Step 2: Convert to fraction form
   1,366,320/2,182,728 = 2,182,728/x
3. Step 3: Cross multiply
   1,366,320x = 2,182,728 × 2,182,728
4. Step 4: Simplify right side
   1,366,320x = 4,764,301,521,984
5. Step 5: Solve for x
   x = 4,764,301,521,984/1,366,320
6. Step 6: Final answer
   x = 3,486,958.78