Finding the Third Proportional to 111,766 and 242,459

Step by Step Solution

1. Step 1: Write the proportion equation
   111,766 : 242,459 = 242,459 : x
2. Step 2: Convert to fraction form
   111,766/242,459 = 242,459/x
3. Step 3: Cross multiply
   111,766x = 242,459 × 242,459
4. Step 4: Simplify right side
   111,766x = 58,786,366,681
5. Step 5: Solve for x
   x = 58,786,366,681/111,766
6. Step 6: Final answer
   x = 525,977.19