Finding the Third Proportional to 31,265 and 63,805

Step by Step Solution

1. Step 1: Write the proportion equation
   31,265 : 63,805 = 63,805 : x
2. Step 2: Convert to fraction form
   31,265/63,805 = 63,805/x
3. Step 3: Cross multiply
   31,265x = 63,805 × 63,805
4. Step 4: Simplify right side
   31,265x = 4,071,078,025
5. Step 5: Solve for x
   x = 4,071,078,025/31,265
6. Step 6: Final answer
   x = 130,212.00