Finding the Third Proportional to 9,191.25 and 13,718.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,191.25 : 13,718.25 = 13,718.25 : x
2. Step 2: Convert to fraction form
   9,191.25/13,718.25 = 13,718.25/x
3. Step 3: Cross multiply
   9,191.25x = 13,718.25 × 13,718.25
4. Step 4: Simplify right side
   9,191.25x = 188,190,383.06
5. Step 5: Solve for x
   x = 188,190,383.06/9,191.25
6. Step 6: Final answer
   x = 20,474.95