Finding the Third Proportional to 12,157 and 17,385

Step by Step Solution

1. Step 1: Write the proportion equation
   12,157 : 17,385 = 17,385 : x
2. Step 2: Convert to fraction form
   12,157/17,385 = 17,385/x
3. Step 3: Cross multiply
   12,157x = 17,385 × 17,385
4. Step 4: Simplify right side
   12,157x = 302,238,225
5. Step 5: Solve for x
   x = 302,238,225/12,157
6. Step 6: Final answer
   x = 24,861.25