Finding the Third Proportional to 389,739 and 837,494

Step by Step Solution

1. Step 1: Write the proportion equation
   389,739 : 837,494 = 837,494 : x
2. Step 2: Convert to fraction form
   389,739/837,494 = 837,494/x
3. Step 3: Cross multiply
   389,739x = 837,494 × 837,494
4. Step 4: Simplify right side
   389,739x = 701,396,200,036
5. Step 5: Solve for x
   x = 701,396,200,036/389,739
6. Step 6: Final answer
   x = 1,799,656.18