Finding the Third Proportional to 13,956 and 16,404

Step by Step Solution

1. Step 1: Write the proportion equation
   13,956 : 16,404 = 16,404 : x
2. Step 2: Convert to fraction form
   13,956/16,404 = 16,404/x
3. Step 3: Cross multiply
   13,956x = 16,404 × 16,404
4. Step 4: Simplify right side
   13,956x = 269,091,216
5. Step 5: Solve for x
   x = 269,091,216/13,956
6. Step 6: Final answer
   x = 19,281.40