Finding the Third Proportional to 858,655 and 1,864,802

Step by Step Solution

1. Step 1: Write the proportion equation
   858,655 : 1,864,802 = 1,864,802 : x
2. Step 2: Convert to fraction form
   858,655/1,864,802 = 1,864,802/x
3. Step 3: Cross multiply
   858,655x = 1,864,802 × 1,864,802
4. Step 4: Simplify right side
   858,655x = 3,477,486,499,204
5. Step 5: Solve for x
   x = 3,477,486,499,204/858,655
6. Step 6: Final answer
   x = 4,049,922.84