Finding the Third Proportional to 371,684 and 814,540

Step by Step Solution

1. Step 1: Write the proportion equation
   371,684 : 814,540 = 814,540 : x
2. Step 2: Convert to fraction form
   371,684/814,540 = 814,540/x
3. Step 3: Cross multiply
   371,684x = 814,540 × 814,540
4. Step 4: Simplify right side
   371,684x = 663,475,411,600
5. Step 5: Solve for x
   x = 663,475,411,600/371,684
6. Step 6: Final answer
   x = 1,785,052.39