Finding the Third Proportional to 12,171 and 16,006.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171 : 16,006.50 = 16,006.50 : x
2. Step 2: Convert to fraction form
   12,171/16,006.50 = 16,006.50/x
3. Step 3: Cross multiply
   12,171x = 16,006.50 × 16,006.50
4. Step 4: Simplify right side
   12,171x = 256,208,042.25
5. Step 5: Solve for x
   x = 256,208,042.25/12,171
6. Step 6: Final answer
   x = 21,050.70