Finding the Third Proportional to 17,275.50 and 20,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,275.50 : 20,191.50 = 20,191.50 : x
2. Step 2: Convert to fraction form
   17,275.50/20,191.50 = 20,191.50/x
3. Step 3: Cross multiply
   17,275.50x = 20,191.50 × 20,191.50
4. Step 4: Simplify right side
   17,275.50x = 407,696,672.25
5. Step 5: Solve for x
   x = 407,696,672.25/17,275.50
6. Step 6: Final answer
   x = 23,599.70