Finding the Third Proportional to 1,131,280 and 2,439,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,280 : 2,439,680 = 2,439,680 : x
2. Step 2: Convert to fraction form
   1,131,280/2,439,680 = 2,439,680/x
3. Step 3: Cross multiply
   1,131,280x = 2,439,680 × 2,439,680
4. Step 4: Simplify right side
   1,131,280x = 5,952,038,502,400
5. Step 5: Solve for x
   x = 5,952,038,502,400/1,131,280
6. Step 6: Final answer
   x = 5,261,330.97