Finding the Third Proportional to 398,758 and 875,022

Step by Step Solution

1. Step 1: Write the proportion equation
   398,758 : 875,022 = 875,022 : x
2. Step 2: Convert to fraction form
   398,758/875,022 = 875,022/x
3. Step 3: Cross multiply
   398,758x = 875,022 × 875,022
4. Step 4: Simplify right side
   398,758x = 765,663,500,484
5. Step 5: Solve for x
   x = 765,663,500,484/398,758
6. Step 6: Final answer
   x = 1,920,120.73