Finding the Third Proportional to 64,856 and 132,930

Step by Step Solution

1. Step 1: Write the proportion equation
   64,856 : 132,930 = 132,930 : x
2. Step 2: Convert to fraction form
   64,856/132,930 = 132,930/x
3. Step 3: Cross multiply
   64,856x = 132,930 × 132,930
4. Step 4: Simplify right side
   64,856x = 17,670,384,900
5. Step 5: Solve for x
   x = 17,670,384,900/64,856
6. Step 6: Final answer
   x = 272,455.67