Finding the Third Proportional to 18,149.20 and 39,791.53

Step by Step Solution

1. Step 1: Write the proportion equation
   18,149.20 : 39,791.53 = 39,791.53 : x
2. Step 2: Convert to fraction form
   18,149.20/39,791.53 = 39,791.53/x
3. Step 3: Cross multiply
   18,149.20x = 39,791.53 × 39,791.53
4. Step 4: Simplify right side
   18,149.20x = 1,583,365,959.22
5. Step 5: Solve for x
   x = 1,583,365,959.22/18,149.20
6. Step 6: Final answer
   x = 87,241.62