Finding the Third Proportional to 18,478.50 and 40,500.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,478.50 : 40,500.75 = 40,500.75 : x
2. Step 2: Convert to fraction form
   18,478.50/40,500.75 = 40,500.75/x
3. Step 3: Cross multiply
   18,478.50x = 40,500.75 × 40,500.75
4. Step 4: Simplify right side
   18,478.50x = 1,640,310,750.56
5. Step 5: Solve for x
   x = 1,640,310,750.56/18,478.50
6. Step 6: Final answer
   x = 88,768.61