Finding the Third Proportional to 151,240 and 222,486

Step by Step Solution

1. Step 1: Write the proportion equation
   151,240 : 222,486 = 222,486 : x
2. Step 2: Convert to fraction form
   151,240/222,486 = 222,486/x
3. Step 3: Cross multiply
   151,240x = 222,486 × 222,486
4. Step 4: Simplify right side
   151,240x = 49,500,020,196
5. Step 5: Solve for x
   x = 49,500,020,196/151,240
6. Step 6: Final answer
   x = 327,294.50