Finding the Third Proportional to 11,161.83 and 15,200.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,161.83 : 15,200.30 = 15,200.30 : x
2. Step 2: Convert to fraction form
   11,161.83/15,200.30 = 15,200.30/x
3. Step 3: Cross multiply
   11,161.83x = 15,200.30 × 15,200.30
4. Step 4: Simplify right side
   11,161.83x = 231,049,025.09
5. Step 5: Solve for x
   x = 231,049,025.09/11,161.83
6. Step 6: Final answer
   x = 20,699.93