Finding the Third Proportional to 10,356 and 14,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,356 : 14,671.50 = 14,671.50 : x
2. Step 2: Convert to fraction form
   10,356/14,671.50 = 14,671.50/x
3. Step 3: Cross multiply
   10,356x = 14,671.50 × 14,671.50
4. Step 4: Simplify right side
   10,356x = 215,252,912.25
5. Step 5: Solve for x
   x = 215,252,912.25/10,356
6. Step 6: Final answer
   x = 20,785.33