Finding the Third Proportional to 111,395 and 234,454

Step by Step Solution

1. Step 1: Write the proportion equation
   111,395 : 234,454 = 234,454 : x
2. Step 2: Convert to fraction form
   111,395/234,454 = 234,454/x
3. Step 3: Cross multiply
   111,395x = 234,454 × 234,454
4. Step 4: Simplify right side
   111,395x = 54,968,678,116
5. Step 5: Solve for x
   x = 54,968,678,116/111,395
6. Step 6: Final answer
   x = 493,457.32