Finding the Third Proportional to 12,900 and 14,916

Step by Step Solution

1. Step 1: Write the proportion equation
   12,900 : 14,916 = 14,916 : x
2. Step 2: Convert to fraction form
   12,900/14,916 = 14,916/x
3. Step 3: Cross multiply
   12,900x = 14,916 × 14,916
4. Step 4: Simplify right side
   12,900x = 222,487,056
5. Step 5: Solve for x
   x = 222,487,056/12,900
6. Step 6: Final answer
   x = 17,247.06