Finding the Third Proportional to 552.50 and 1,090

Step by Step Solution

1. Step 1: Write the proportion equation
   552.50 : 1,090 = 1,090 : x
2. Step 2: Convert to fraction form
   552.50/1,090 = 1,090/x
3. Step 3: Cross multiply
   552.50x = 1,090 × 1,090
4. Step 4: Simplify right side
   552.50x = 1,188,100
5. Step 5: Solve for x
   x = 1,188,100/552.50
6. Step 6: Final answer
   x = 2,150.41