Finding the Third Proportional to 112,800 and 245,040

Step by Step Solution

1. Step 1: Write the proportion equation
   112,800 : 245,040 = 245,040 : x
2. Step 2: Convert to fraction form
   112,800/245,040 = 245,040/x
3. Step 3: Cross multiply
   112,800x = 245,040 × 245,040
4. Step 4: Simplify right side
   112,800x = 60,044,601,600
5. Step 5: Solve for x
   x = 60,044,601,600/112,800
6. Step 6: Final answer
   x = 532,310.30