Finding the Third Proportional to 911.25 and 2,162.25

Step by Step Solution

1. Step 1: Write the proportion equation
   911.25 : 2,162.25 = 2,162.25 : x
2. Step 2: Convert to fraction form
   911.25/2,162.25 = 2,162.25/x
3. Step 3: Cross multiply
   911.25x = 2,162.25 × 2,162.25
4. Step 4: Simplify right side
   911.25x = 4,675,325.06
5. Step 5: Solve for x
   x = 4,675,325.06/911.25
6. Step 6: Final answer
   x = 5,130.67