Finding the Third Proportional to 18,458.51 and 40,191.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,458.51 : 40,191.82 = 40,191.82 : x
2. Step 2: Convert to fraction form
   18,458.51/40,191.82 = 40,191.82/x
3. Step 3: Cross multiply
   18,458.51x = 40,191.82 × 40,191.82
4. Step 4: Simplify right side
   18,458.51x = 1,615,382,420.03
5. Step 5: Solve for x
   x = 1,615,382,420.03/18,458.51
6. Step 6: Final answer
   x = 87,514.25