Finding the Third Proportional to 17,509.50 and 27,172.13

Step by Step Solution

1. Step 1: Write the proportion equation
   17,509.50 : 27,172.13 = 27,172.13 : x
2. Step 2: Convert to fraction form
   17,509.50/27,172.13 = 27,172.13/x
3. Step 3: Cross multiply
   17,509.50x = 27,172.13 × 27,172.13
4. Step 4: Simplify right side
   17,509.50x = 738,324,377.02
5. Step 5: Solve for x
   x = 738,324,377.02/17,509.50
6. Step 6: Final answer
   x = 42,167.07