Finding the Third Proportional to 1,028.79 and 2,222.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.79 : 2,222.12 = 2,222.12 : x
2. Step 2: Convert to fraction form
   1,028.79/2,222.12 = 2,222.12/x
3. Step 3: Cross multiply
   1,028.79x = 2,222.12 × 2,222.12
4. Step 4: Simplify right side
   1,028.79x = 4,937,822.16
5. Step 5: Solve for x
   x = 4,937,822.16/1,028.79
6. Step 6: Final answer
   x = 4,799.62