Finding the Third Proportional to 142,491 and 222,360

Step by Step Solution

1. Step 1: Write the proportion equation
   142,491 : 222,360 = 222,360 : x
2. Step 2: Convert to fraction form
   142,491/222,360 = 222,360/x
3. Step 3: Cross multiply
   142,491x = 222,360 × 222,360
4. Step 4: Simplify right side
   142,491x = 49,443,969,600
5. Step 5: Solve for x
   x = 49,443,969,600/142,491
6. Step 6: Final answer
   x = 346,997.14