Finding the Third Proportional to 10,491.75 and 14,439.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,491.75 : 14,439.38 = 14,439.38 : x
2. Step 2: Convert to fraction form
   10,491.75/14,439.38 = 14,439.38/x
3. Step 3: Cross multiply
   10,491.75x = 14,439.38 × 14,439.38
4. Step 4: Simplify right side
   10,491.75x = 208,495,550.39
5. Step 5: Solve for x
   x = 208,495,550.39/10,491.75
6. Step 6: Final answer
   x = 19,872.33