Finding the Third Proportional to 2,511,279 and 5,450,664

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511,279 : 5,450,664 = 5,450,664 : x
2. Step 2: Convert to fraction form
   2,511,279/5,450,664 = 5,450,664/x
3. Step 3: Cross multiply
   2,511,279x = 5,450,664 × 5,450,664
4. Step 4: Simplify right side
   2,511,279x = 29,709,738,040,896
5. Step 5: Solve for x
   x = 29,709,738,040,896/2,511,279
6. Step 6: Final answer
   x = 11,830,520.64