Finding the Third Proportional to 66,336 and 103,872

Step by Step Solution

1. Step 1: Write the proportion equation
   66,336 : 103,872 = 103,872 : x
2. Step 2: Convert to fraction form
   66,336/103,872 = 103,872/x
3. Step 3: Cross multiply
   66,336x = 103,872 × 103,872
4. Step 4: Simplify right side
   66,336x = 10,789,392,384
5. Step 5: Solve for x
   x = 10,789,392,384/66,336
6. Step 6: Final answer
   x = 162,647.62