Finding the Third Proportional to 18,940.50 and 28,410.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,940.50 : 28,410.75 = 28,410.75 : x
2. Step 2: Convert to fraction form
   18,940.50/28,410.75 = 28,410.75/x
3. Step 3: Cross multiply
   18,940.50x = 28,410.75 × 28,410.75
4. Step 4: Simplify right side
   18,940.50x = 807,170,715.56
5. Step 5: Solve for x
   x = 807,170,715.56/18,940.50
6. Step 6: Final answer
   x = 42,616.13