Finding the Third Proportional to 1,280,261 and 2,758,810

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,261 : 2,758,810 = 2,758,810 : x
2. Step 2: Convert to fraction form
   1,280,261/2,758,810 = 2,758,810/x
3. Step 3: Cross multiply
   1,280,261x = 2,758,810 × 2,758,810
4. Step 4: Simplify right side
   1,280,261x = 7,611,032,616,100
5. Step 5: Solve for x
   x = 7,611,032,616,100/1,280,261
6. Step 6: Final answer
   x = 5,944,907.03