Finding the Third Proportional to 12,320 and 18,764

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320 : 18,764 = 18,764 : x
2. Step 2: Convert to fraction form
   12,320/18,764 = 18,764/x
3. Step 3: Cross multiply
   12,320x = 18,764 × 18,764
4. Step 4: Simplify right side
   12,320x = 352,087,696
5. Step 5: Solve for x
   x = 352,087,696/12,320
6. Step 6: Final answer
   x = 28,578.55