Finding the Third Proportional to 545.91 and 1,111.22

Step by Step Solution

1. Step 1: Write the proportion equation
   545.91 : 1,111.22 = 1,111.22 : x
2. Step 2: Convert to fraction form
   545.91/1,111.22 = 1,111.22/x
3. Step 3: Cross multiply
   545.91x = 1,111.22 × 1,111.22
4. Step 4: Simplify right side
   545.91x = 1,234,807.11
5. Step 5: Solve for x
   x = 1,234,807.11/545.91
6. Step 6: Final answer
   x = 2,261.94