Finding the Third Proportional to 31,276 and 63,828

Step by Step Solution

1. Step 1: Write the proportion equation
   31,276 : 63,828 = 63,828 : x
2. Step 2: Convert to fraction form
   31,276/63,828 = 63,828/x
3. Step 3: Cross multiply
   31,276x = 63,828 × 63,828
4. Step 4: Simplify right side
   31,276x = 4,074,013,584
5. Step 5: Solve for x
   x = 4,074,013,584/31,276
6. Step 6: Final answer
   x = 130,260.06