Finding the Third Proportional to 111,891 and 236,742

Step by Step Solution

1. Step 1: Write the proportion equation
   111,891 : 236,742 = 236,742 : x
2. Step 2: Convert to fraction form
   111,891/236,742 = 236,742/x
3. Step 3: Cross multiply
   111,891x = 236,742 × 236,742
4. Step 4: Simplify right side
   111,891x = 56,046,774,564
5. Step 5: Solve for x
   x = 56,046,774,564/111,891
6. Step 6: Final answer
   x = 500,905.12