Finding the Third Proportional to 31,271 and 63,816

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271 : 63,816 = 63,816 : x
2. Step 2: Convert to fraction form
   31,271/63,816 = 63,816/x
3. Step 3: Cross multiply
   31,271x = 63,816 × 63,816
4. Step 4: Simplify right side
   31,271x = 4,072,481,856
5. Step 5: Solve for x
   x = 4,072,481,856/31,271
6. Step 6: Final answer
   x = 130,231.90