Finding the Third Proportional to 112,839 and 245,361

Step by Step Solution

1. Step 1: Write the proportion equation
   112,839 : 245,361 = 245,361 : x
2. Step 2: Convert to fraction form
   112,839/245,361 = 245,361/x
3. Step 3: Cross multiply
   112,839x = 245,361 × 245,361
4. Step 4: Simplify right side
   112,839x = 60,202,020,321
5. Step 5: Solve for x
   x = 60,202,020,321/112,839
6. Step 6: Final answer
   x = 533,521.39