Finding the Third Proportional to 139,257 and 203,016

Step by Step Solution

1. Step 1: Write the proportion equation
   139,257 : 203,016 = 203,016 : x
2. Step 2: Convert to fraction form
   139,257/203,016 = 203,016/x
3. Step 3: Cross multiply
   139,257x = 203,016 × 203,016
4. Step 4: Simplify right side
   139,257x = 41,215,496,256
5. Step 5: Solve for x
   x = 41,215,496,256/139,257
6. Step 6: Final answer
   x = 295,967.14