Finding the Third Proportional to 1,274,728 and 2,798,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274,728 : 2,798,288 = 2,798,288 : x
2. Step 2: Convert to fraction form
   1,274,728/2,798,288 = 2,798,288/x
3. Step 3: Cross multiply
   1,274,728x = 2,798,288 × 2,798,288
4. Step 4: Simplify right side
   1,274,728x = 7,830,415,730,944
5. Step 5: Solve for x
   x = 7,830,415,730,944/1,274,728
6. Step 6: Final answer
   x = 6,142,813.00