Finding the Third Proportional to 16,638.38 and 36,192.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.38 : 36,192.56 = 36,192.56 : x
2. Step 2: Convert to fraction form
   16,638.38/36,192.56 = 36,192.56/x
3. Step 3: Cross multiply
   16,638.38x = 36,192.56 × 36,192.56
4. Step 4: Simplify right side
   16,638.38x = 1,309,901,580.32
5. Step 5: Solve for x
   x = 1,309,901,580.32/16,638.38
6. Step 6: Final answer
   x = 78,727.74