Finding the Third Proportional to 139,258 and 202,930

Step by Step Solution

1. Step 1: Write the proportion equation
   139,258 : 202,930 = 202,930 : x
2. Step 2: Convert to fraction form
   139,258/202,930 = 202,930/x
3. Step 3: Cross multiply
   139,258x = 202,930 × 202,930
4. Step 4: Simplify right side
   139,258x = 41,180,584,900
5. Step 5: Solve for x
   x = 41,180,584,900/139,258
6. Step 6: Final answer
   x = 295,714.32