Finding the Third Proportional to 16,239 and 35,455

Step by Step Solution

1. Step 1: Write the proportion equation
   16,239 : 35,455 = 35,455 : x
2. Step 2: Convert to fraction form
   16,239/35,455 = 35,455/x
3. Step 3: Cross multiply
   16,239x = 35,455 × 35,455
4. Step 4: Simplify right side
   16,239x = 1,257,057,025
5. Step 5: Solve for x
   x = 1,257,057,025/16,239
6. Step 6: Final answer
   x = 77,409.76