Finding the Third Proportional to 2,289,570 and 4,972,772

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289,570 : 4,972,772 = 4,972,772 : x
2. Step 2: Convert to fraction form
   2,289,570/4,972,772 = 4,972,772/x
3. Step 3: Cross multiply
   2,289,570x = 4,972,772 × 4,972,772
4. Step 4: Simplify right side
   2,289,570x = 24,728,461,363,984
5. Step 5: Solve for x
   x = 24,728,461,363,984/2,289,570
6. Step 6: Final answer
   x = 10,800,482.78