Finding the Third Proportional to 859,488 and 1,821,426

Step by Step Solution

1. Step 1: Write the proportion equation
   859,488 : 1,821,426 = 1,821,426 : x
2. Step 2: Convert to fraction form
   859,488/1,821,426 = 1,821,426/x
3. Step 3: Cross multiply
   859,488x = 1,821,426 × 1,821,426
4. Step 4: Simplify right side
   859,488x = 3,317,592,673,476
5. Step 5: Solve for x
   x = 3,317,592,673,476/859,488
6. Step 6: Final answer
   x = 3,859,963.92