Finding the Third Proportional to 18,700.25 and 40,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,700.25 : 40,919.50 = 40,919.50 : x
2. Step 2: Convert to fraction form
   18,700.25/40,919.50 = 40,919.50/x
3. Step 3: Cross multiply
   18,700.25x = 40,919.50 × 40,919.50
4. Step 4: Simplify right side
   18,700.25x = 1,674,405,480.25
5. Step 5: Solve for x
   x = 1,674,405,480.25/18,700.25
6. Step 6: Final answer
   x = 89,539.20