Finding the Third Proportional to 515.25 and 1,111.22

Step by Step Solution

1. Step 1: Write the proportion equation
   515.25 : 1,111.22 = 1,111.22 : x
2. Step 2: Convert to fraction form
   515.25/1,111.22 = 1,111.22/x
3. Step 3: Cross multiply
   515.25x = 1,111.22 × 1,111.22
4. Step 4: Simplify right side
   515.25x = 1,234,807.11
5. Step 5: Solve for x
   x = 1,234,807.11/515.25
6. Step 6: Final answer
   x = 2,396.52