Finding the Third Proportional to 1,280,466 and 2,718,630

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,466 : 2,718,630 = 2,718,630 : x
2. Step 2: Convert to fraction form
   1,280,466/2,718,630 = 2,718,630/x
3. Step 3: Cross multiply
   1,280,466x = 2,718,630 × 2,718,630
4. Step 4: Simplify right side
   1,280,466x = 7,390,949,076,900
5. Step 5: Solve for x
   x = 7,390,949,076,900/1,280,466
6. Step 6: Final answer
   x = 5,772,077.57