Finding the Third Proportional to 863,290 and 1,879,842

Step by Step Solution

1. Step 1: Write the proportion equation
   863,290 : 1,879,842 = 1,879,842 : x
2. Step 2: Convert to fraction form
   863,290/1,879,842 = 1,879,842/x
3. Step 3: Cross multiply
   863,290x = 1,879,842 × 1,879,842
4. Step 4: Simplify right side
   863,290x = 3,533,805,944,964
5. Step 5: Solve for x
   x = 3,533,805,944,964/863,290
6. Step 6: Final answer
   x = 4,093,416.98