Finding the Third Proportional to 19,399.50 and 40,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,399.50 : 40,018.50 = 40,018.50 : x
2. Step 2: Convert to fraction form
   19,399.50/40,018.50 = 40,018.50/x
3. Step 3: Cross multiply
   19,399.50x = 40,018.50 × 40,018.50
4. Step 4: Simplify right side
   19,399.50x = 1,601,480,342.25
5. Step 5: Solve for x
   x = 1,601,480,342.25/19,399.50
6. Step 6: Final answer
   x = 82,552.66