Finding the Third Proportional to 4,661.72 and 10,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,661.72 : 10,142.72 = 10,142.72 : x
2. Step 2: Convert to fraction form
   4,661.72/10,142.72 = 10,142.72/x
3. Step 3: Cross multiply
   4,661.72x = 10,142.72 × 10,142.72
4. Step 4: Simplify right side
   4,661.72x = 102,874,743.64
5. Step 5: Solve for x
   x = 102,874,743.64/4,661.72
6. Step 6: Final answer
   x = 22,067.99