Finding the Third Proportional to 1,012,578 and 2,227,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,578 : 2,227,268 = 2,227,268 : x
2. Step 2: Convert to fraction form
   1,012,578/2,227,268 = 2,227,268/x
3. Step 3: Cross multiply
   1,012,578x = 2,227,268 × 2,227,268
4. Step 4: Simplify right side
   1,012,578x = 4,960,722,743,824
5. Step 5: Solve for x
   x = 4,960,722,743,824/1,012,578
6. Step 6: Final answer
   x = 4,899,101.84