Finding the Third Proportional to 111,917 and 242,759

Step by Step Solution

1. Step 1: Write the proportion equation
   111,917 : 242,759 = 242,759 : x
2. Step 2: Convert to fraction form
   111,917/242,759 = 242,759/x
3. Step 3: Cross multiply
   111,917x = 242,759 × 242,759
4. Step 4: Simplify right side
   111,917x = 58,931,932,081
5. Step 5: Solve for x
   x = 58,931,932,081/111,917
6. Step 6: Final answer
   x = 526,568.19