Finding the Third Proportional to 111,215 and 241,830

Step by Step Solution

1. Step 1: Write the proportion equation
   111,215 : 241,830 = 241,830 : x
2. Step 2: Convert to fraction form
   111,215/241,830 = 241,830/x
3. Step 3: Cross multiply
   111,215x = 241,830 × 241,830
4. Step 4: Simplify right side
   111,215x = 58,481,748,900
5. Step 5: Solve for x
   x = 58,481,748,900/111,215
6. Step 6: Final answer
   x = 525,844.08