Finding the Third Proportional to 112,640 and 244,960

Step by Step Solution

1. Step 1: Write the proportion equation
   112,640 : 244,960 = 244,960 : x
2. Step 2: Convert to fraction form
   112,640/244,960 = 244,960/x
3. Step 3: Cross multiply
   112,640x = 244,960 × 244,960
4. Step 4: Simplify right side
   112,640x = 60,005,401,600
5. Step 5: Solve for x
   x = 60,005,401,600/112,640
6. Step 6: Final answer
   x = 532,718.41