Finding the Third Proportional to 12,345 and 17,641

Step by Step Solution

1. Step 1: Write the proportion equation
   12,345 : 17,641 = 17,641 : x
2. Step 2: Convert to fraction form
   12,345/17,641 = 17,641/x
3. Step 3: Cross multiply
   12,345x = 17,641 × 17,641
4. Step 4: Simplify right side
   12,345x = 311,204,881
5. Step 5: Solve for x
   x = 311,204,881/12,345
6. Step 6: Final answer
   x = 25,208.98