Finding the Third Proportional to 7,200.75 and 16,680.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.75 : 16,680.56 = 16,680.56 : x
2. Step 2: Convert to fraction form
   7,200.75/16,680.56 = 16,680.56/x
3. Step 3: Cross multiply
   7,200.75x = 16,680.56 × 16,680.56
4. Step 4: Simplify right side
   7,200.75x = 278,241,165.32
5. Step 5: Solve for x
   x = 278,241,165.32/7,200.75
6. Step 6: Final answer
   x = 38,640.58