Finding the Third Proportional to 151,818 and 222,805

Step by Step Solution

1. Step 1: Write the proportion equation
   151,818 : 222,805 = 222,805 : x
2. Step 2: Convert to fraction form
   151,818/222,805 = 222,805/x
3. Step 3: Cross multiply
   151,818x = 222,805 × 222,805
4. Step 4: Simplify right side
   151,818x = 49,642,068,025
5. Step 5: Solve for x
   x = 49,642,068,025/151,818
6. Step 6: Final answer
   x = 326,984.07