Finding the Third Proportional to 111,333 and 242,647

Step by Step Solution

1. Step 1: Write the proportion equation
   111,333 : 242,647 = 242,647 : x
2. Step 2: Convert to fraction form
   111,333/242,647 = 242,647/x
3. Step 3: Cross multiply
   111,333x = 242,647 × 242,647
4. Step 4: Simplify right side
   111,333x = 58,877,566,609
5. Step 5: Solve for x
   x = 58,877,566,609/111,333
6. Step 6: Final answer
   x = 528,842.00