Finding the Third Proportional to 859,461 and 1,821,372

Step by Step Solution

1. Step 1: Write the proportion equation
   859,461 : 1,821,372 = 1,821,372 : x
2. Step 2: Convert to fraction form
   859,461/1,821,372 = 1,821,372/x
3. Step 3: Cross multiply
   859,461x = 1,821,372 × 1,821,372
4. Step 4: Simplify right side
   859,461x = 3,317,395,962,384
5. Step 5: Solve for x
   x = 3,317,395,962,384/859,461
6. Step 6: Final answer
   x = 3,859,856.31