Finding the Third Proportional to 112,190 and 245,499

Step by Step Solution

1. Step 1: Write the proportion equation
   112,190 : 245,499 = 245,499 : x
2. Step 2: Convert to fraction form
   112,190/245,499 = 245,499/x
3. Step 3: Cross multiply
   112,190x = 245,499 × 245,499
4. Step 4: Simplify right side
   112,190x = 60,269,759,001
5. Step 5: Solve for x
   x = 60,269,759,001/112,190
6. Step 6: Final answer
   x = 537,211.51