Finding the Third Proportional to 111,575 and 242,836

Step by Step Solution

1. Step 1: Write the proportion equation
   111,575 : 242,836 = 242,836 : x
2. Step 2: Convert to fraction form
   111,575/242,836 = 242,836/x
3. Step 3: Cross multiply
   111,575x = 242,836 × 242,836
4. Step 4: Simplify right side
   111,575x = 58,969,322,896
5. Step 5: Solve for x
   x = 58,969,322,896/111,575
6. Step 6: Final answer
   x = 528,517.35