Finding the Third Proportional to 510.94 and 1,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   510.94 : 1,081.50 = 1,081.50 : x
2. Step 2: Convert to fraction form
   510.94/1,081.50 = 1,081.50/x
3. Step 3: Cross multiply
   510.94x = 1,081.50 × 1,081.50
4. Step 4: Simplify right side
   510.94x = 1,169,642.25
5. Step 5: Solve for x
   x = 1,169,642.25/510.94
6. Step 6: Final answer
   x = 2,289.21