Finding the Third Proportional to 396,066 and 851,838

Step by Step Solution

1. Step 1: Write the proportion equation
   396,066 : 851,838 = 851,838 : x
2. Step 2: Convert to fraction form
   396,066/851,838 = 851,838/x
3. Step 3: Cross multiply
   396,066x = 851,838 × 851,838
4. Step 4: Simplify right side
   396,066x = 725,627,978,244
5. Step 5: Solve for x
   x = 725,627,978,244/396,066
6. Step 6: Final answer
   x = 1,832,088.54