Finding the Third Proportional to 12,315 and 25,355

Step by Step Solution

1. Step 1: Write the proportion equation
   12,315 : 25,355 = 25,355 : x
2. Step 2: Convert to fraction form
   12,315/25,355 = 25,355/x
3. Step 3: Cross multiply
   12,315x = 25,355 × 25,355
4. Step 4: Simplify right side
   12,315x = 642,876,025
5. Step 5: Solve for x
   x = 642,876,025/12,315
6. Step 6: Final answer
   x = 52,202.68