Finding the Third Proportional to 18,338.91 and 39,935.53

Step by Step Solution

1. Step 1: Write the proportion equation
   18,338.91 : 39,935.53 = 39,935.53 : x
2. Step 2: Convert to fraction form
   18,338.91/39,935.53 = 39,935.53/x
3. Step 3: Cross multiply
   18,338.91x = 39,935.53 × 39,935.53
4. Step 4: Simplify right side
   18,338.91x = 1,594,846,656.22
5. Step 5: Solve for x
   x = 1,594,846,656.22/18,338.91
6. Step 6: Final answer
   x = 86,965.20