Finding the Third Proportional to 2,100,800 and 4,581,824

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,800 : 4,581,824 = 4,581,824 : x
2. Step 2: Convert to fraction form
   2,100,800/4,581,824 = 4,581,824/x
3. Step 3: Cross multiply
   2,100,800x = 4,581,824 × 4,581,824
4. Step 4: Simplify right side
   2,100,800x = 20,993,111,166,976
5. Step 5: Solve for x
   x = 20,993,111,166,976/2,100,800
6. Step 6: Final answer
   x = 9,992,912.78