Finding the Third Proportional to 19,497.38 and 39,918.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,497.38 : 39,918.38 = 39,918.38 : x
2. Step 2: Convert to fraction form
   19,497.38/39,918.38 = 39,918.38/x
3. Step 3: Cross multiply
   19,497.38x = 39,918.38 × 39,918.38
4. Step 4: Simplify right side
   19,497.38x = 1,593,476,662.64
5. Step 5: Solve for x
   x = 1,593,476,662.64/19,497.38
6. Step 6: Final answer
   x = 81,727.75