Finding the Third Proportional to 12,222 and 25,407

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222 : 25,407 = 25,407 : x
2. Step 2: Convert to fraction form
   12,222/25,407 = 25,407/x
3. Step 3: Cross multiply
   12,222x = 25,407 × 25,407
4. Step 4: Simplify right side
   12,222x = 645,515,649
5. Step 5: Solve for x
   x = 645,515,649/12,222
6. Step 6: Final answer
   x = 52,815.88