Finding the Third Proportional to 1,288,264 and 2,798,510

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,264 : 2,798,510 = 2,798,510 : x
2. Step 2: Convert to fraction form
   1,288,264/2,798,510 = 2,798,510/x
3. Step 3: Cross multiply
   1,288,264x = 2,798,510 × 2,798,510
4. Step 4: Simplify right side
   1,288,264x = 7,831,658,220,100
5. Step 5: Solve for x
   x = 7,831,658,220,100/1,288,264
6. Step 6: Final answer
   x = 6,079,233.93