Finding the Third Proportional to 863,290 and 1,879,841

Step by Step Solution

1. Step 1: Write the proportion equation
   863,290 : 1,879,841 = 1,879,841 : x
2. Step 2: Convert to fraction form
   863,290/1,879,841 = 1,879,841/x
3. Step 3: Cross multiply
   863,290x = 1,879,841 × 1,879,841
4. Step 4: Simplify right side
   863,290x = 3,533,802,185,281
5. Step 5: Solve for x
   x = 3,533,802,185,281/863,290
6. Step 6: Final answer
   x = 4,093,412.63