Finding the Third Proportional to 8,528 and 12,924.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,528 : 12,924.50 = 12,924.50 : x
2. Step 2: Convert to fraction form
   8,528/12,924.50 = 12,924.50/x
3. Step 3: Cross multiply
   8,528x = 12,924.50 × 12,924.50
4. Step 4: Simplify right side
   8,528x = 167,042,700.25
5. Step 5: Solve for x
   x = 167,042,700.25/8,528
6. Step 6: Final answer
   x = 19,587.56