Finding the Third Proportional to 7,170.78 and 10,080.21

Step by Step Solution

1. Step 1: Write the proportion equation
   7,170.78 : 10,080.21 = 10,080.21 : x
2. Step 2: Convert to fraction form
   7,170.78/10,080.21 = 10,080.21/x
3. Step 3: Cross multiply
   7,170.78x = 10,080.21 × 10,080.21
4. Step 4: Simplify right side
   7,170.78x = 101,610,593.48
5. Step 5: Solve for x
   x = 101,610,593.48/7,170.78
6. Step 6: Final answer
   x = 14,170.09