Finding the Third Proportional to 19,218 and 25,644

Step by Step Solution

1. Step 1: Write the proportion equation
   19,218 : 25,644 = 25,644 : x
2. Step 2: Convert to fraction form
   19,218/25,644 = 25,644/x
3. Step 3: Cross multiply
   19,218x = 25,644 × 25,644
4. Step 4: Simplify right side
   19,218x = 657,614,736
5. Step 5: Solve for x
   x = 657,614,736/19,218
6. Step 6: Final answer
   x = 34,218.69