Finding the Third Proportional to 11,729.25 and 21,676.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,729.25 : 21,676.50 = 21,676.50 : x
2. Step 2: Convert to fraction form
   11,729.25/21,676.50 = 21,676.50/x
3. Step 3: Cross multiply
   11,729.25x = 21,676.50 × 21,676.50
4. Step 4: Simplify right side
   11,729.25x = 469,870,652.25
5. Step 5: Solve for x
   x = 469,870,652.25/11,729.25
6. Step 6: Final answer
   x = 40,059.74