Finding the Third Proportional to 858,510 and 1,864,764

Step by Step Solution

1. Step 1: Write the proportion equation
   858,510 : 1,864,764 = 1,864,764 : x
2. Step 2: Convert to fraction form
   858,510/1,864,764 = 1,864,764/x
3. Step 3: Cross multiply
   858,510x = 1,864,764 × 1,864,764
4. Step 4: Simplify right side
   858,510x = 3,477,344,775,696
5. Step 5: Solve for x
   x = 3,477,344,775,696/858,510
6. Step 6: Final answer
   x = 4,050,441.78