Finding the Third Proportional to 245,628 and 360,384

Step by Step Solution

1. Step 1: Write the proportion equation
   245,628 : 360,384 = 360,384 : x
2. Step 2: Convert to fraction form
   245,628/360,384 = 360,384/x
3. Step 3: Cross multiply
   245,628x = 360,384 × 360,384
4. Step 4: Simplify right side
   245,628x = 129,876,627,456
5. Step 5: Solve for x
   x = 129,876,627,456/245,628
6. Step 6: Final answer
   x = 528,753.35