Finding the Third Proportional to 851,832 and 1,821,856

Step by Step Solution

1. Step 1: Write the proportion equation
   851,832 : 1,821,856 = 1,821,856 : x
2. Step 2: Convert to fraction form
   851,832/1,821,856 = 1,821,856/x
3. Step 3: Cross multiply
   851,832x = 1,821,856 × 1,821,856
4. Step 4: Simplify right side
   851,832x = 3,319,159,284,736
5. Step 5: Solve for x
   x = 3,319,159,284,736/851,832
6. Step 6: Final answer
   x = 3,896,495.18