Finding the Third Proportional to 9,661.50 and 13,788

Step by Step Solution

1. Step 1: Write the proportion equation
   9,661.50 : 13,788 = 13,788 : x
2. Step 2: Convert to fraction form
   9,661.50/13,788 = 13,788/x
3. Step 3: Cross multiply
   9,661.50x = 13,788 × 13,788
4. Step 4: Simplify right side
   9,661.50x = 190,108,944
5. Step 5: Solve for x
   x = 190,108,944/9,661.50
6. Step 6: Final answer
   x = 19,676.96