Finding the Third Proportional to 245,488 and 360,456

Step by Step Solution

1. Step 1: Write the proportion equation
   245,488 : 360,456 = 360,456 : x
2. Step 2: Convert to fraction form
   245,488/360,456 = 360,456/x
3. Step 3: Cross multiply
   245,488x = 360,456 × 360,456
4. Step 4: Simplify right side
   245,488x = 129,928,527,936
5. Step 5: Solve for x
   x = 129,928,527,936/245,488
6. Step 6: Final answer
   x = 529,266.31