Finding the Third Proportional to 111,921 and 245,894

Step by Step Solution

1. Step 1: Write the proportion equation
   111,921 : 245,894 = 245,894 : x
2. Step 2: Convert to fraction form
   111,921/245,894 = 245,894/x
3. Step 3: Cross multiply
   111,921x = 245,894 × 245,894
4. Step 4: Simplify right side
   111,921x = 60,463,859,236
5. Step 5: Solve for x
   x = 60,463,859,236/111,921
6. Step 6: Final answer
   x = 540,236.95