Finding the Third Proportional to 11,310 and 14,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,310 : 14,959.50 = 14,959.50 : x
2. Step 2: Convert to fraction form
   11,310/14,959.50 = 14,959.50/x
3. Step 3: Cross multiply
   11,310x = 14,959.50 × 14,959.50
4. Step 4: Simplify right side
   11,310x = 223,786,640.25
5. Step 5: Solve for x
   x = 223,786,640.25/11,310
6. Step 6: Final answer
   x = 19,786.62