Finding the Third Proportional to 860,571 and 1,870,398

Step by Step Solution

1. Step 1: Write the proportion equation
   860,571 : 1,870,398 = 1,870,398 : x
2. Step 2: Convert to fraction form
   860,571/1,870,398 = 1,870,398/x
3. Step 3: Cross multiply
   860,571x = 1,870,398 × 1,870,398
4. Step 4: Simplify right side
   860,571x = 3,498,388,678,404
5. Step 5: Solve for x
   x = 3,498,388,678,404/860,571
6. Step 6: Final answer
   x = 4,065,194.71