Finding the Third Proportional to 158,980 and 336,908

Step by Step Solution

1. Step 1: Write the proportion equation
   158,980 : 336,908 = 336,908 : x
2. Step 2: Convert to fraction form
   158,980/336,908 = 336,908/x
3. Step 3: Cross multiply
   158,980x = 336,908 × 336,908
4. Step 4: Simplify right side
   158,980x = 113,507,000,464
5. Step 5: Solve for x
   x = 113,507,000,464/158,980
6. Step 6: Final answer
   x = 713,970.31