Finding the Third Proportional to 11,809.50 and 16,510.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.50 : 16,510.13 = 16,510.13 : x
2. Step 2: Convert to fraction form
   11,809.50/16,510.13 = 16,510.13/x
3. Step 3: Cross multiply
   11,809.50x = 16,510.13 × 16,510.13
4. Step 4: Simplify right side
   11,809.50x = 272,584,227.52
5. Step 5: Solve for x
   x = 272,584,227.52/11,809.50
6. Step 6: Final answer
   x = 23,081.78