Finding the Third Proportional to 1,280,264 and 2,758,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,264 : 2,758,816 = 2,758,816 : x
2. Step 2: Convert to fraction form
   1,280,264/2,758,816 = 2,758,816/x
3. Step 3: Cross multiply
   1,280,264x = 2,758,816 × 2,758,816
4. Step 4: Simplify right side
   1,280,264x = 7,611,065,721,856
5. Step 5: Solve for x
   x = 7,611,065,721,856/1,280,264
6. Step 6: Final answer
   x = 5,944,918.96