Finding the Third Proportional to 11,962.69 and 20,131.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,962.69 : 20,131.03 = 20,131.03 : x
2. Step 2: Convert to fraction form
   11,962.69/20,131.03 = 20,131.03/x
3. Step 3: Cross multiply
   11,962.69x = 20,131.03 × 20,131.03
4. Step 4: Simplify right side
   11,962.69x = 405,258,419.19
5. Step 5: Solve for x
   x = 405,258,419.19/11,962.69
6. Step 6: Final answer
   x = 33,876.87