Finding the Third Proportional to 851,661 and 1,828,872

Step by Step Solution

1. Step 1: Write the proportion equation
   851,661 : 1,828,872 = 1,828,872 : x
2. Step 2: Convert to fraction form
   851,661/1,828,872 = 1,828,872/x
3. Step 3: Cross multiply
   851,661x = 1,828,872 × 1,828,872
4. Step 4: Simplify right side
   851,661x = 3,344,772,792,384
5. Step 5: Solve for x
   x = 3,344,772,792,384/851,661
6. Step 6: Final answer
   x = 3,927,352.31