Finding the Third Proportional to 1,029,812 and 2,153,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029,812 : 2,153,728 = 2,153,728 : x
2. Step 2: Convert to fraction form
   1,029,812/2,153,728 = 2,153,728/x
3. Step 3: Cross multiply
   1,029,812x = 2,153,728 × 2,153,728
4. Step 4: Simplify right side
   1,029,812x = 4,638,544,297,984
5. Step 5: Solve for x
   x = 4,638,544,297,984/1,029,812
6. Step 6: Final answer
   x = 4,504,263.20