Finding the Third Proportional to 7,663.50 and 12,042

Step by Step Solution

1. Step 1: Write the proportion equation
   7,663.50 : 12,042 = 12,042 : x
2. Step 2: Convert to fraction form
   7,663.50/12,042 = 12,042/x
3. Step 3: Cross multiply
   7,663.50x = 12,042 × 12,042
4. Step 4: Simplify right side
   7,663.50x = 145,009,764
5. Step 5: Solve for x
   x = 145,009,764/7,663.50
6. Step 6: Final answer
   x = 18,922.13