Finding the Third Proportional to 928.69 and 1,411.31

Step by Step Solution

1. Step 1: Write the proportion equation
   928.69 : 1,411.31 = 1,411.31 : x
2. Step 2: Convert to fraction form
   928.69/1,411.31 = 1,411.31/x
3. Step 3: Cross multiply
   928.69x = 1,411.31 × 1,411.31
4. Step 4: Simplify right side
   928.69x = 1,991,802.97
5. Step 5: Solve for x
   x = 1,991,802.97/928.69
6. Step 6: Final answer
   x = 2,144.75