Finding the Third Proportional to 19,291.50 and 39,119.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,291.50 : 39,119.25 = 39,119.25 : x
2. Step 2: Convert to fraction form
   19,291.50/39,119.25 = 39,119.25/x
3. Step 3: Cross multiply
   19,291.50x = 39,119.25 × 39,119.25
4. Step 4: Simplify right side
   19,291.50x = 1,530,315,720.56
5. Step 5: Solve for x
   x = 1,530,315,720.56/19,291.50
6. Step 6: Final answer
   x = 79,325.91