Finding the Third Proportional to 398,104 and 874,928

Step by Step Solution

1. Step 1: Write the proportion equation
   398,104 : 874,928 = 874,928 : x
2. Step 2: Convert to fraction form
   398,104/874,928 = 874,928/x
3. Step 3: Cross multiply
   398,104x = 874,928 × 874,928
4. Step 4: Simplify right side
   398,104x = 765,499,005,184
5. Step 5: Solve for x
   x = 765,499,005,184/398,104
6. Step 6: Final answer
   x = 1,922,861.88