Finding the Third Proportional to 792 and 1,109.25

Step by Step Solution

1. Step 1: Write the proportion equation
   792 : 1,109.25 = 1,109.25 : x
2. Step 2: Convert to fraction form
   792/1,109.25 = 1,109.25/x
3. Step 3: Cross multiply
   792x = 1,109.25 × 1,109.25
4. Step 4: Simplify right side
   792x = 1,230,435.56
5. Step 5: Solve for x
   x = 1,230,435.56/792
6. Step 6: Final answer
   x = 1,553.58