Finding the Third Proportional to 1,131,218 and 2,439,554

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,218 : 2,439,554 = 2,439,554 : x
2. Step 2: Convert to fraction form
   1,131,218/2,439,554 = 2,439,554/x
3. Step 3: Cross multiply
   1,131,218x = 2,439,554 × 2,439,554
4. Step 4: Simplify right side
   1,131,218x = 5,951,423,718,916
5. Step 5: Solve for x
   x = 5,951,423,718,916/1,131,218
6. Step 6: Final answer
   x = 5,261,075.87