Finding the Third Proportional to 10,236.38 and 21,687.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,236.38 : 21,687.75 = 21,687.75 : x
2. Step 2: Convert to fraction form
   10,236.38/21,687.75 = 21,687.75/x
3. Step 3: Cross multiply
   10,236.38x = 21,687.75 × 21,687.75
4. Step 4: Simplify right side
   10,236.38x = 470,358,500.06
5. Step 5: Solve for x
   x = 470,358,500.06/10,236.38
6. Step 6: Final answer
   x = 45,949.71