Finding the Third Proportional to 861,563 and 1,879,795

Step by Step Solution

1. Step 1: Write the proportion equation
   861,563 : 1,879,795 = 1,879,795 : x
2. Step 2: Convert to fraction form
   861,563/1,879,795 = 1,879,795/x
3. Step 3: Cross multiply
   861,563x = 1,879,795 × 1,879,795
4. Step 4: Simplify right side
   861,563x = 3,533,629,242,025
5. Step 5: Solve for x
   x = 3,533,629,242,025/861,563
6. Step 6: Final answer
   x = 4,101,417.12