Finding the Third Proportional to 858,648 and 1,864,824

Step by Step Solution

1. Step 1: Write the proportion equation
   858,648 : 1,864,824 = 1,864,824 : x
2. Step 2: Convert to fraction form
   858,648/1,864,824 = 1,864,824/x
3. Step 3: Cross multiply
   858,648x = 1,864,824 × 1,864,824
4. Step 4: Simplify right side
   858,648x = 3,477,568,550,976
5. Step 5: Solve for x
   x = 3,477,568,550,976/858,648
6. Step 6: Final answer
   x = 4,050,051.42