Finding the Third Proportional to 398,758.25 and 875,018

Step by Step Solution

1. Step 1: Write the proportion equation
   398,758.25 : 875,018 = 875,018 : x
2. Step 2: Convert to fraction form
   398,758.25/875,018 = 875,018/x
3. Step 3: Cross multiply
   398,758.25x = 875,018 × 875,018
4. Step 4: Simplify right side
   398,758.25x = 765,656,500,324
5. Step 5: Solve for x
   x = 765,656,500,324/398,758.25
6. Step 6: Final answer
   x = 1,920,101.97