Finding the Third Proportional to 159,931 and 342,005

Step by Step Solution

1. Step 1: Write the proportion equation
   159,931 : 342,005 = 342,005 : x
2. Step 2: Convert to fraction form
   159,931/342,005 = 342,005/x
3. Step 3: Cross multiply
   159,931x = 342,005 × 342,005
4. Step 4: Simplify right side
   159,931x = 116,967,420,025
5. Step 5: Solve for x
   x = 116,967,420,025/159,931
6. Step 6: Final answer
   x = 731,361.77