Finding the Third Proportional to 862,728 and 1,874,493

Step by Step Solution

1. Step 1: Write the proportion equation
   862,728 : 1,874,493 = 1,874,493 : x
2. Step 2: Convert to fraction form
   862,728/1,874,493 = 1,874,493/x
3. Step 3: Cross multiply
   862,728x = 1,874,493 × 1,874,493
4. Step 4: Simplify right side
   862,728x = 3,513,724,007,049
5. Step 5: Solve for x
   x = 3,513,724,007,049/862,728
6. Step 6: Final answer
   x = 4,072,806.27