Finding the Third Proportional to 389,736 and 850,002

Step by Step Solution

1. Step 1: Write the proportion equation
   389,736 : 850,002 = 850,002 : x
2. Step 2: Convert to fraction form
   389,736/850,002 = 850,002/x
3. Step 3: Cross multiply
   389,736x = 850,002 × 850,002
4. Step 4: Simplify right side
   389,736x = 722,503,400,004
5. Step 5: Solve for x
   x = 722,503,400,004/389,736
6. Step 6: Final answer
   x = 1,853,827.72