Finding the Third Proportional to 151,020 and 222,138

Step by Step Solution

1. Step 1: Write the proportion equation
   151,020 : 222,138 = 222,138 : x
2. Step 2: Convert to fraction form
   151,020/222,138 = 222,138/x
3. Step 3: Cross multiply
   151,020x = 222,138 × 222,138
4. Step 4: Simplify right side
   151,020x = 49,345,291,044
5. Step 5: Solve for x
   x = 49,345,291,044/151,020
6. Step 6: Final answer
   x = 326,746.73