Finding the Third Proportional to 2,018.81 and 3,222.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.81 : 3,222.56 = 3,222.56 : x
2. Step 2: Convert to fraction form
   2,018.81/3,222.56 = 3,222.56/x
3. Step 3: Cross multiply
   2,018.81x = 3,222.56 × 3,222.56
4. Step 4: Simplify right side
   2,018.81x = 10,384,909.07
5. Step 5: Solve for x
   x = 10,384,909.07/2,018.81
6. Step 6: Final answer
   x = 5,144.07