Finding the Third Proportional to 10,455 and 25,287

Step by Step Solution

1. Step 1: Write the proportion equation
   10,455 : 25,287 = 25,287 : x
2. Step 2: Convert to fraction form
   10,455/25,287 = 25,287/x
3. Step 3: Cross multiply
   10,455x = 25,287 × 25,287
4. Step 4: Simplify right side
   10,455x = 639,432,369
5. Step 5: Solve for x
   x = 639,432,369/10,455
6. Step 6: Final answer
   x = 61,160.44