Finding the Third Proportional to 115,536 and 245,648

Step by Step Solution

1. Step 1: Write the proportion equation
   115,536 : 245,648 = 245,648 : x
2. Step 2: Convert to fraction form
   115,536/245,648 = 245,648/x
3. Step 3: Cross multiply
   115,536x = 245,648 × 245,648
4. Step 4: Simplify right side
   115,536x = 60,342,939,904
5. Step 5: Solve for x
   x = 60,342,939,904/115,536
6. Step 6: Final answer
   x = 522,286.91