Finding the Third Proportional to 1,448,978 and 2,253,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448,978 : 2,253,228 = 2,253,228 : x
2. Step 2: Convert to fraction form
   1,448,978/2,253,228 = 2,253,228/x
3. Step 3: Cross multiply
   1,448,978x = 2,253,228 × 2,253,228
4. Step 4: Simplify right side
   1,448,978x = 5,077,036,419,984
5. Step 5: Solve for x
   x = 5,077,036,419,984/1,448,978
6. Step 6: Final answer
   x = 3,503,874.05