Finding the Third Proportional to 839,387 and 1,798,443

Step by Step Solution

1. Step 1: Write the proportion equation
   839,387 : 1,798,443 = 1,798,443 : x
2. Step 2: Convert to fraction form
   839,387/1,798,443 = 1,798,443/x
3. Step 3: Cross multiply
   839,387x = 1,798,443 × 1,798,443
4. Step 4: Simplify right side
   839,387x = 3,234,397,224,249
5. Step 5: Solve for x
   x = 3,234,397,224,249/839,387
6. Step 6: Final answer
   x = 3,853,284.87