Finding the Third Proportional to 8,504 and 12,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,504 : 12,764.50 = 12,764.50 : x
2. Step 2: Convert to fraction form
   8,504/12,764.50 = 12,764.50/x
3. Step 3: Cross multiply
   8,504x = 12,764.50 × 12,764.50
4. Step 4: Simplify right side
   8,504x = 162,932,460.25
5. Step 5: Solve for x
   x = 162,932,460.25/8,504
6. Step 6: Final answer
   x = 19,159.51