Finding the Third Proportional to 398,745 and 874,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   398,745 : 874,993.50 = 874,993.50 : x
2. Step 2: Convert to fraction form
   398,745/874,993.50 = 874,993.50/x
3. Step 3: Cross multiply
   398,745x = 874,993.50 × 874,993.50
4. Step 4: Simplify right side
   398,745x = 765,613,625,042.25
5. Step 5: Solve for x
   x = 765,613,625,042.25/398,745
6. Step 6: Final answer
   x = 1,920,058.25