Finding the Third Proportional to 10,158.38 and 16,221.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.38 : 16,221.56 = 16,221.56 : x
2. Step 2: Convert to fraction form
   10,158.38/16,221.56 = 16,221.56/x
3. Step 3: Cross multiply
   10,158.38x = 16,221.56 × 16,221.56
4. Step 4: Simplify right side
   10,158.38x = 263,139,089.94
5. Step 5: Solve for x
   x = 263,139,089.94/10,158.38
6. Step 6: Final answer
   x = 25,903.66