Finding the Third Proportional to 31,326 and 65,245

Step by Step Solution

1. Step 1: Write the proportion equation
   31,326 : 65,245 = 65,245 : x
2. Step 2: Convert to fraction form
   31,326/65,245 = 65,245/x
3. Step 3: Cross multiply
   31,326x = 65,245 × 65,245
4. Step 4: Simplify right side
   31,326x = 4,256,910,025
5. Step 5: Solve for x
   x = 4,256,910,025/31,326
6. Step 6: Final answer
   x = 135,890.63