Finding the Third Proportional to 158,991 and 336,936

Step by Step Solution

1. Step 1: Write the proportion equation
   158,991 : 336,936 = 336,936 : x
2. Step 2: Convert to fraction form
   158,991/336,936 = 336,936/x
3. Step 3: Cross multiply
   158,991x = 336,936 × 336,936
4. Step 4: Simplify right side
   158,991x = 113,525,868,096
5. Step 5: Solve for x
   x = 113,525,868,096/158,991
6. Step 6: Final answer
   x = 714,039.59