Finding the Third Proportional to 8,118.50 and 17,490.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.50 : 17,490.75 = 17,490.75 : x
2. Step 2: Convert to fraction form
   8,118.50/17,490.75 = 17,490.75/x
3. Step 3: Cross multiply
   8,118.50x = 17,490.75 × 17,490.75
4. Step 4: Simplify right side
   8,118.50x = 305,926,335.56
5. Step 5: Solve for x
   x = 305,926,335.56/8,118.50
6. Step 6: Final answer
   x = 37,682.62