Finding the Third Proportional to 18,716.06 and 40,039.31

Step by Step Solution

1. Step 1: Write the proportion equation
   18,716.06 : 40,039.31 = 40,039.31 : x
2. Step 2: Convert to fraction form
   18,716.06/40,039.31 = 40,039.31/x
3. Step 3: Cross multiply
   18,716.06x = 40,039.31 × 40,039.31
4. Step 4: Simplify right side
   18,716.06x = 1,603,146,545.47
5. Step 5: Solve for x
   x = 1,603,146,545.47/18,716.06
6. Step 6: Final answer
   x = 85,656.19