Finding the Third Proportional to 8,630 and 18,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,630 : 18,839.50 = 18,839.50 : x
2. Step 2: Convert to fraction form
   8,630/18,839.50 = 18,839.50/x
3. Step 3: Cross multiply
   8,630x = 18,839.50 × 18,839.50
4. Step 4: Simplify right side
   8,630x = 354,926,760.25
5. Step 5: Solve for x
   x = 354,926,760.25/8,630
6. Step 6: Final answer
   x = 41,127.09