Finding the Third Proportional to 139,256 and 202,928

Step by Step Solution

1. Step 1: Write the proportion equation
   139,256 : 202,928 = 202,928 : x
2. Step 2: Convert to fraction form
   139,256/202,928 = 202,928/x
3. Step 3: Cross multiply
   139,256x = 202,928 × 202,928
4. Step 4: Simplify right side
   139,256x = 41,179,773,184
5. Step 5: Solve for x
   x = 41,179,773,184/139,256
6. Step 6: Final answer
   x = 295,712.74