Finding the Third Proportional to 12,838.50 and 17,172

Step by Step Solution

1. Step 1: Write the proportion equation
   12,838.50 : 17,172 = 17,172 : x
2. Step 2: Convert to fraction form
   12,838.50/17,172 = 17,172/x
3. Step 3: Cross multiply
   12,838.50x = 17,172 × 17,172
4. Step 4: Simplify right side
   12,838.50x = 294,877,584
5. Step 5: Solve for x
   x = 294,877,584/12,838.50
6. Step 6: Final answer
   x = 22,968.23