Finding the Third Proportional to 12,906 and 17,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906 : 17,167.50 = 17,167.50 : x
2. Step 2: Convert to fraction form
   12,906/17,167.50 = 17,167.50/x
3. Step 3: Cross multiply
   12,906x = 17,167.50 × 17,167.50
4. Step 4: Simplify right side
   12,906x = 294,723,056.25
5. Step 5: Solve for x
   x = 294,723,056.25/12,906
6. Step 6: Final answer
   x = 22,836.13