Finding the Third Proportional to 9,518.50 and 20,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,518.50 : 20,498.50 = 20,498.50 : x
2. Step 2: Convert to fraction form
   9,518.50/20,498.50 = 20,498.50/x
3. Step 3: Cross multiply
   9,518.50x = 20,498.50 × 20,498.50
4. Step 4: Simplify right side
   9,518.50x = 420,188,502.25
5. Step 5: Solve for x
   x = 420,188,502.25/9,518.50
6. Step 6: Final answer
   x = 44,144.40