Finding the Third Proportional to 158,979.75 and 336,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,979.75 : 336,913.50 = 336,913.50 : x
2. Step 2: Convert to fraction form
   158,979.75/336,913.50 = 336,913.50/x
3. Step 3: Cross multiply
   158,979.75x = 336,913.50 × 336,913.50
4. Step 4: Simplify right side
   158,979.75x = 113,510,706,482.25
5. Step 5: Solve for x
   x = 113,510,706,482.25/158,979.75
6. Step 6: Final answer
   x = 713,994.75