Finding the Third Proportional to 20,718 and 32,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,718 : 32,818.50 = 32,818.50 : x
2. Step 2: Convert to fraction form
   20,718/32,818.50 = 32,818.50/x
3. Step 3: Cross multiply
   20,718x = 32,818.50 × 32,818.50
4. Step 4: Simplify right side
   20,718x = 1,077,053,942.25
5. Step 5: Solve for x
   x = 1,077,053,942.25/20,718
6. Step 6: Final answer
   x = 51,986.39