Finding the Third Proportional to 1,217.81 and 1,822.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217.81 : 1,822.22 = 1,822.22 : x
2. Step 2: Convert to fraction form
   1,217.81/1,822.22 = 1,822.22/x
3. Step 3: Cross multiply
   1,217.81x = 1,822.22 × 1,822.22
4. Step 4: Simplify right side
   1,217.81x = 3,320,481.17
5. Step 5: Solve for x
   x = 3,320,481.17/1,217.81
6. Step 6: Final answer
   x = 2,726.59