Finding the Third Proportional to 8,007.61 and 17,621.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,007.61 : 17,621.30 = 17,621.30 : x
2. Step 2: Convert to fraction form
   8,007.61/17,621.30 = 17,621.30/x
3. Step 3: Cross multiply
   8,007.61x = 17,621.30 × 17,621.30
4. Step 4: Simplify right side
   8,007.61x = 310,510,103.56
5. Step 5: Solve for x
   x = 310,510,103.56/8,007.61
6. Step 6: Final answer
   x = 38,776.88