Finding the Third Proportional to 799.88 and 1,080.56

Step by Step Solution

1. Step 1: Write the proportion equation
   799.88 : 1,080.56 = 1,080.56 : x
2. Step 2: Convert to fraction form
   799.88/1,080.56 = 1,080.56/x
3. Step 3: Cross multiply
   799.88x = 1,080.56 × 1,080.56
4. Step 4: Simplify right side
   799.88x = 1,167,615.32
5. Step 5: Solve for x
   x = 1,167,615.32/799.88
6. Step 6: Final answer
   x = 1,459.75