Finding the Third Proportional to 1,154,280 and 2,557,656

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154,280 : 2,557,656 = 2,557,656 : x
2. Step 2: Convert to fraction form
   1,154,280/2,557,656 = 2,557,656/x
3. Step 3: Cross multiply
   1,154,280x = 2,557,656 × 2,557,656
4. Step 4: Simplify right side
   1,154,280x = 6,541,604,214,336
5. Step 5: Solve for x
   x = 6,541,604,214,336/1,154,280
6. Step 6: Final answer
   x = 5,667,259.43