Finding the Third Proportional to 9,940 and 20,695

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940 : 20,695 = 20,695 : x
2. Step 2: Convert to fraction form
   9,940/20,695 = 20,695/x
3. Step 3: Cross multiply
   9,940x = 20,695 × 20,695
4. Step 4: Simplify right side
   9,940x = 428,283,025
5. Step 5: Solve for x
   x = 428,283,025/9,940
6. Step 6: Final answer
   x = 43,086.82