Finding the Third Proportional to 138,256 and 303,008

Step by Step Solution

1. Step 1: Write the proportion equation
   138,256 : 303,008 = 303,008 : x
2. Step 2: Convert to fraction form
   138,256/303,008 = 303,008/x
3. Step 3: Cross multiply
   138,256x = 303,008 × 303,008
4. Step 4: Simplify right side
   138,256x = 91,813,848,064
5. Step 5: Solve for x
   x = 91,813,848,064/138,256
6. Step 6: Final answer
   x = 664,085.81