Finding the Third Proportional to 31,488 and 65,544

Step by Step Solution

1. Step 1: Write the proportion equation
   31,488 : 65,544 = 65,544 : x
2. Step 2: Convert to fraction form
   31,488/65,544 = 65,544/x
3. Step 3: Cross multiply
   31,488x = 65,544 × 65,544
4. Step 4: Simplify right side
   31,488x = 4,296,015,936
5. Step 5: Solve for x
   x = 4,296,015,936/31,488
6. Step 6: Final answer
   x = 136,433.43