Finding the Third Proportional to 11,117.50 and 16,636.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,117.50 : 16,636.88 = 16,636.88 : x
2. Step 2: Convert to fraction form
   11,117.50/16,636.88 = 16,636.88/x
3. Step 3: Cross multiply
   11,117.50x = 16,636.88 × 16,636.88
4. Step 4: Simplify right side
   11,117.50x = 276,785,609.77
5. Step 5: Solve for x
   x = 276,785,609.77/11,117.50
6. Step 6: Final answer
   x = 24,896.39