Finding the Third Proportional to 840,138 and 1,843,578

Step by Step Solution

1. Step 1: Write the proportion equation
   840,138 : 1,843,578 = 1,843,578 : x
2. Step 2: Convert to fraction form
   840,138/1,843,578 = 1,843,578/x
3. Step 3: Cross multiply
   840,138x = 1,843,578 × 1,843,578
4. Step 4: Simplify right side
   840,138x = 3,398,779,842,084
5. Step 5: Solve for x
   x = 3,398,779,842,084/840,138
6. Step 6: Final answer
   x = 4,045,501.86