Finding the Third Proportional to 859,454 and 1,821,361

Step by Step Solution

1. Step 1: Write the proportion equation
   859,454 : 1,821,361 = 1,821,361 : x
2. Step 2: Convert to fraction form
   859,454/1,821,361 = 1,821,361/x
3. Step 3: Cross multiply
   859,454x = 1,821,361 × 1,821,361
4. Step 4: Simplify right side
   859,454x = 3,317,355,892,321
5. Step 5: Solve for x
   x = 3,317,355,892,321/859,454
6. Step 6: Final answer
   x = 3,859,841.12