Finding the Third Proportional to 16,825.50 and 18,634.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,825.50 : 18,634.50 = 18,634.50 : x
2. Step 2: Convert to fraction form
   16,825.50/18,634.50 = 18,634.50/x
3. Step 3: Cross multiply
   16,825.50x = 18,634.50 × 18,634.50
4. Step 4: Simplify right side
   16,825.50x = 347,244,590.25
5. Step 5: Solve for x
   x = 347,244,590.25/16,825.50
6. Step 6: Final answer
   x = 20,638.00