Finding the Third Proportional to 2,289,378 and 4,972,398

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289,378 : 4,972,398 = 4,972,398 : x
2. Step 2: Convert to fraction form
   2,289,378/4,972,398 = 4,972,398/x
3. Step 3: Cross multiply
   2,289,378x = 4,972,398 × 4,972,398
4. Step 4: Simplify right side
   2,289,378x = 24,724,741,870,404
5. Step 5: Solve for x
   x = 24,724,741,870,404/2,289,378
6. Step 6: Final answer
   x = 10,799,763.90