Finding the Third Proportional to 6,615 and 13,653

Step by Step Solution

1. Step 1: Write the proportion equation
   6,615 : 13,653 = 13,653 : x
2. Step 2: Convert to fraction form
   6,615/13,653 = 13,653/x
3. Step 3: Cross multiply
   6,615x = 13,653 × 13,653
4. Step 4: Simplify right side
   6,615x = 186,404,409
5. Step 5: Solve for x
   x = 186,404,409/6,615
6. Step 6: Final answer
   x = 28,179.05