Finding the Third Proportional to 111,788 and 236,488

Step by Step Solution

1. Step 1: Write the proportion equation
   111,788 : 236,488 = 236,488 : x
2. Step 2: Convert to fraction form
   111,788/236,488 = 236,488/x
3. Step 3: Cross multiply
   111,788x = 236,488 × 236,488
4. Step 4: Simplify right side
   111,788x = 55,926,574,144
5. Step 5: Solve for x
   x = 55,926,574,144/111,788
6. Step 6: Final answer
   x = 500,291.39