Finding the Third Proportional to 12,316 and 17,642

Step by Step Solution

1. Step 1: Write the proportion equation
   12,316 : 17,642 = 17,642 : x
2. Step 2: Convert to fraction form
   12,316/17,642 = 17,642/x
3. Step 3: Cross multiply
   12,316x = 17,642 × 17,642
4. Step 4: Simplify right side
   12,316x = 311,240,164
5. Step 5: Solve for x
   x = 311,240,164/12,316
6. Step 6: Final answer
   x = 25,271.21