Finding the Third Proportional to 17,617.50 and 19,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,617.50 : 19,273.50 = 19,273.50 : x
2. Step 2: Convert to fraction form
   17,617.50/19,273.50 = 19,273.50/x
3. Step 3: Cross multiply
   17,617.50x = 19,273.50 × 19,273.50
4. Step 4: Simplify right side
   17,617.50x = 371,467,802.25
5. Step 5: Solve for x
   x = 371,467,802.25/17,617.50
6. Step 6: Final answer
   x = 21,085.16