Finding the Third Proportional to 21,194.50 and 28,783.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,194.50 : 28,783.50 = 28,783.50 : x
2. Step 2: Convert to fraction form
   21,194.50/28,783.50 = 28,783.50/x
3. Step 3: Cross multiply
   21,194.50x = 28,783.50 × 28,783.50
4. Step 4: Simplify right side
   21,194.50x = 828,489,872.25
5. Step 5: Solve for x
   x = 828,489,872.25/21,194.50
6. Step 6: Final answer
   x = 39,089.85