Finding the Third Proportional to 112,257 and 245,628

Step by Step Solution

1. Step 1: Write the proportion equation
   112,257 : 245,628 = 245,628 : x
2. Step 2: Convert to fraction form
   112,257/245,628 = 245,628/x
3. Step 3: Cross multiply
   112,257x = 245,628 × 245,628
4. Step 4: Simplify right side
   112,257x = 60,333,114,384
5. Step 5: Solve for x
   x = 60,333,114,384/112,257
6. Step 6: Final answer
   x = 537,455.25