Finding the Third Proportional to 11,215.13 and 14,922.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,215.13 : 14,922.56 = 14,922.56 : x
2. Step 2: Convert to fraction form
   11,215.13/14,922.56 = 14,922.56/x
3. Step 3: Cross multiply
   11,215.13x = 14,922.56 × 14,922.56
4. Step 4: Simplify right side
   11,215.13x = 222,682,871.57
5. Step 5: Solve for x
   x = 222,682,871.57/11,215.13
6. Step 6: Final answer
   x = 19,855.59