Finding the Third Proportional to 111,894 and 243,266

Step by Step Solution

1. Step 1: Write the proportion equation
   111,894 : 243,266 = 243,266 : x
2. Step 2: Convert to fraction form
   111,894/243,266 = 243,266/x
3. Step 3: Cross multiply
   111,894x = 243,266 × 243,266
4. Step 4: Simplify right side
   111,894x = 59,178,346,756
5. Step 5: Solve for x
   x = 59,178,346,756/111,894
6. Step 6: Final answer
   x = 528,878.64