Finding the Third Proportional to 859,408 and 1,855,472

Step by Step Solution

1. Step 1: Write the proportion equation
   859,408 : 1,855,472 = 1,855,472 : x
2. Step 2: Convert to fraction form
   859,408/1,855,472 = 1,855,472/x
3. Step 3: Cross multiply
   859,408x = 1,855,472 × 1,855,472
4. Step 4: Simplify right side
   859,408x = 3,442,776,342,784
5. Step 5: Solve for x
   x = 3,442,776,342,784/859,408
6. Step 6: Final answer
   x = 4,005,985.91