Finding the Third Proportional to 838,538 and 1,809,856

Step by Step Solution

1. Step 1: Write the proportion equation
   838,538 : 1,809,856 = 1,809,856 : x
2. Step 2: Convert to fraction form
   838,538/1,809,856 = 1,809,856/x
3. Step 3: Cross multiply
   838,538x = 1,809,856 × 1,809,856
4. Step 4: Simplify right side
   838,538x = 3,275,578,740,736
5. Step 5: Solve for x
   x = 3,275,578,740,736/838,538
6. Step 6: Final answer
   x = 3,906,297.32