Finding the Third Proportional to 839,061 and 1,258,578

Step by Step Solution

1. Step 1: Write the proportion equation
   839,061 : 1,258,578 = 1,258,578 : x
2. Step 2: Convert to fraction form
   839,061/1,258,578 = 1,258,578/x
3. Step 3: Cross multiply
   839,061x = 1,258,578 × 1,258,578
4. Step 4: Simplify right side
   839,061x = 1,584,018,582,084
5. Step 5: Solve for x
   x = 1,584,018,582,084/839,061
6. Step 6: Final answer
   x = 1,887,846.75