Finding the Third Proportional to 10,559.11 and 14,221.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,559.11 : 14,221.83 = 14,221.83 : x
2. Step 2: Convert to fraction form
   10,559.11/14,221.83 = 14,221.83/x
3. Step 3: Cross multiply
   10,559.11x = 14,221.83 × 14,221.83
4. Step 4: Simplify right side
   10,559.11x = 202,260,395.22
5. Step 5: Solve for x
   x = 202,260,395.22/10,559.11
6. Step 6: Final answer
   x = 19,155.06