Finding the Third Proportional to 2,554,879.50 and 5,563,359

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554,879.50 : 5,563,359 = 5,563,359 : x
2. Step 2: Convert to fraction form
   2,554,879.50/5,563,359 = 5,563,359/x
3. Step 3: Cross multiply
   2,554,879.50x = 5,563,359 × 5,563,359
4. Step 4: Simplify right side
   2,554,879.50x = 30,950,963,362,881
5. Step 5: Solve for x
   x = 30,950,963,362,881/2,554,879.50
6. Step 6: Final answer
   x = 12,114,451.33