Finding the Third Proportional to 111,576 and 234,648

Step by Step Solution

1. Step 1: Write the proportion equation
   111,576 : 234,648 = 234,648 : x
2. Step 2: Convert to fraction form
   111,576/234,648 = 234,648/x
3. Step 3: Cross multiply
   111,576x = 234,648 × 234,648
4. Step 4: Simplify right side
   111,576x = 55,059,683,904
5. Step 5: Solve for x
   x = 55,059,683,904/111,576
6. Step 6: Final answer
   x = 493,472.47