Finding the Third Proportional to 16,815.50 and 26,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,815.50 : 26,020.50 = 26,020.50 : x
2. Step 2: Convert to fraction form
   16,815.50/26,020.50 = 26,020.50/x
3. Step 3: Cross multiply
   16,815.50x = 26,020.50 × 26,020.50
4. Step 4: Simplify right side
   16,815.50x = 677,066,420.25
5. Step 5: Solve for x
   x = 677,066,420.25/16,815.50
6. Step 6: Final answer
   x = 40,264.42