Finding the Third Proportional to 18,790.31 and 40,019.06

Step by Step Solution

1. Step 1: Write the proportion equation
   18,790.31 : 40,019.06 = 40,019.06 : x
2. Step 2: Convert to fraction form
   18,790.31/40,019.06 = 40,019.06/x
3. Step 3: Cross multiply
   18,790.31x = 40,019.06 × 40,019.06
4. Step 4: Simplify right side
   18,790.31x = 1,601,525,363.38
5. Step 5: Solve for x
   x = 1,601,525,363.38/18,790.31
6. Step 6: Final answer
   x = 85,231.44