Finding the Third Proportional to 858,493 and 1,864,730

Step by Step Solution

1. Step 1: Write the proportion equation
   858,493 : 1,864,730 = 1,864,730 : x
2. Step 2: Convert to fraction form
   858,493/1,864,730 = 1,864,730/x
3. Step 3: Cross multiply
   858,493x = 1,864,730 × 1,864,730
4. Step 4: Simplify right side
   858,493x = 3,477,217,972,900
5. Step 5: Solve for x
   x = 3,477,217,972,900/858,493
6. Step 6: Final answer
   x = 4,050,374.29