Finding the Third Proportional to 11,009.81 and 15,586.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,009.81 : 15,586.59 = 15,586.59 : x
2. Step 2: Convert to fraction form
   11,009.81/15,586.59 = 15,586.59/x
3. Step 3: Cross multiply
   11,009.81x = 15,586.59 × 15,586.59
4. Step 4: Simplify right side
   11,009.81x = 242,941,904.73
5. Step 5: Solve for x
   x = 242,941,904.73/11,009.81
6. Step 6: Final answer
   x = 22,065.94