Finding the Third Proportional to 7,662.09 and 11,912.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,662.09 : 11,912.06 = 11,912.06 : x
2. Step 2: Convert to fraction form
   7,662.09/11,912.06 = 11,912.06/x
3. Step 3: Cross multiply
   7,662.09x = 11,912.06 × 11,912.06
4. Step 4: Simplify right side
   7,662.09x = 141,897,233.00
5. Step 5: Solve for x
   x = 141,897,233.00/7,662.09
6. Step 6: Final answer
   x = 18,519.38