Finding the Third Proportional to 111,219 and 242,850

Step by Step Solution

1. Step 1: Write the proportion equation
   111,219 : 242,850 = 242,850 : x
2. Step 2: Convert to fraction form
   111,219/242,850 = 242,850/x
3. Step 3: Cross multiply
   111,219x = 242,850 × 242,850
4. Step 4: Simplify right side
   111,219x = 58,976,122,500
5. Step 5: Solve for x
   x = 58,976,122,500/111,219
6. Step 6: Final answer
   x = 530,270.21