Finding the Third Proportional to 12,188 and 25,240

Step by Step Solution

1. Step 1: Write the proportion equation
   12,188 : 25,240 = 25,240 : x
2. Step 2: Convert to fraction form
   12,188/25,240 = 25,240/x
3. Step 3: Cross multiply
   12,188x = 25,240 × 25,240
4. Step 4: Simplify right side
   12,188x = 637,057,600
5. Step 5: Solve for x
   x = 637,057,600/12,188
6. Step 6: Final answer
   x = 52,269.25