Finding the Third Proportional to 19,786.50 and 28,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,786.50 : 28,786.50 = 28,786.50 : x
2. Step 2: Convert to fraction form
   19,786.50/28,786.50 = 28,786.50/x
3. Step 3: Cross multiply
   19,786.50x = 28,786.50 × 28,786.50
4. Step 4: Simplify right side
   19,786.50x = 828,662,582.25
5. Step 5: Solve for x
   x = 828,662,582.25/19,786.50
6. Step 6: Final answer
   x = 41,880.20