Finding the Third Proportional to 17,196.75 and 18,816.75

Step by Step Solution

1. Step 1: Write the proportion equation
   17,196.75 : 18,816.75 = 18,816.75 : x
2. Step 2: Convert to fraction form
   17,196.75/18,816.75 = 18,816.75/x
3. Step 3: Cross multiply
   17,196.75x = 18,816.75 × 18,816.75
4. Step 4: Simplify right side
   17,196.75x = 354,070,080.56
5. Step 5: Solve for x
   x = 354,070,080.56/17,196.75
6. Step 6: Final answer
   x = 20,589.36