Finding the Third Proportional to 1,056,640 and 2,281,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056,640 : 2,281,728 = 2,281,728 : x
2. Step 2: Convert to fraction form
   1,056,640/2,281,728 = 2,281,728/x
3. Step 3: Cross multiply
   1,056,640x = 2,281,728 × 2,281,728
4. Step 4: Simplify right side
   1,056,640x = 5,206,282,665,984
5. Step 5: Solve for x
   x = 5,206,282,665,984/1,056,640
6. Step 6: Final answer
   x = 4,927,205.73