Finding the Third Proportional to 157,215.50 and 222,245

Step by Step Solution

1. Step 1: Write the proportion equation
   157,215.50 : 222,245 = 222,245 : x
2. Step 2: Convert to fraction form
   157,215.50/222,245 = 222,245/x
3. Step 3: Cross multiply
   157,215.50x = 222,245 × 222,245
4. Step 4: Simplify right side
   157,215.50x = 49,392,840,025
5. Step 5: Solve for x
   x = 49,392,840,025/157,215.50
6. Step 6: Final answer
   x = 314,172.84