Finding the Third Proportional to 20,617.50 and 28,008

Step by Step Solution

1. Step 1: Write the proportion equation
   20,617.50 : 28,008 = 28,008 : x
2. Step 2: Convert to fraction form
   20,617.50/28,008 = 28,008/x
3. Step 3: Cross multiply
   20,617.50x = 28,008 × 28,008
4. Step 4: Simplify right side
   20,617.50x = 784,448,064
5. Step 5: Solve for x
   x = 784,448,064/20,617.50
6. Step 6: Final answer
   x = 38,047.68