Finding the Third Proportional to 8,216.25 and 12,530.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.25 : 12,530.25 = 12,530.25 : x
2. Step 2: Convert to fraction form
   8,216.25/12,530.25 = 12,530.25/x
3. Step 3: Cross multiply
   8,216.25x = 12,530.25 × 12,530.25
4. Step 4: Simplify right side
   8,216.25x = 157,007,165.06
5. Step 5: Solve for x
   x = 157,007,165.06/8,216.25
6. Step 6: Final answer
   x = 19,109.35