Finding the Third Proportional to 389,734.50 and 837,486

Step by Step Solution

1. Step 1: Write the proportion equation
   389,734.50 : 837,486 = 837,486 : x
2. Step 2: Convert to fraction form
   389,734.50/837,486 = 837,486/x
3. Step 3: Cross multiply
   389,734.50x = 837,486 × 837,486
4. Step 4: Simplify right side
   389,734.50x = 701,382,800,196
5. Step 5: Solve for x
   x = 701,382,800,196/389,734.50
6. Step 6: Final answer
   x = 1,799,642.58