Finding the Third Proportional to 11,199 and 14,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,199 : 14,818.50 = 14,818.50 : x
2. Step 2: Convert to fraction form
   11,199/14,818.50 = 14,818.50/x
3. Step 3: Cross multiply
   11,199x = 14,818.50 × 14,818.50
4. Step 4: Simplify right side
   11,199x = 219,587,942.25
5. Step 5: Solve for x
   x = 219,587,942.25/11,199
6. Step 6: Final answer
   x = 19,607.82