Finding the Third Proportional to 25,410 and 39,499

Step by Step Solution

1. Step 1: Write the proportion equation
   25,410 : 39,499 = 39,499 : x
2. Step 2: Convert to fraction form
   25,410/39,499 = 39,499/x
3. Step 3: Cross multiply
   25,410x = 39,499 × 39,499
4. Step 4: Simplify right side
   25,410x = 1,560,171,001
5. Step 5: Solve for x
   x = 1,560,171,001/25,410
6. Step 6: Final answer
   x = 61,399.88