Finding the Third Proportional to 7,990.50 and 18,663.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,990.50 : 18,663.38 = 18,663.38 : x
2. Step 2: Convert to fraction form
   7,990.50/18,663.38 = 18,663.38/x
3. Step 3: Cross multiply
   7,990.50x = 18,663.38 × 18,663.38
4. Step 4: Simplify right side
   7,990.50x = 348,321,566.39
5. Step 5: Solve for x
   x = 348,321,566.39/7,990.50
6. Step 6: Final answer
   x = 43,591.96