Finding the Third Proportional to 858,596 and 1,864,804

Step by Step Solution

1. Step 1: Write the proportion equation
   858,596 : 1,864,804 = 1,864,804 : x
2. Step 2: Convert to fraction form
   858,596/1,864,804 = 1,864,804/x
3. Step 3: Cross multiply
   858,596x = 1,864,804 × 1,864,804
4. Step 4: Simplify right side
   858,596x = 3,477,493,958,416
5. Step 5: Solve for x
   x = 3,477,493,958,416/858,596
6. Step 6: Final answer
   x = 4,050,209.83