Finding the Third Proportional to 158,000.50 and 338,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,000.50 : 338,144.50 = 338,144.50 : x
2. Step 2: Convert to fraction form
   158,000.50/338,144.50 = 338,144.50/x
3. Step 3: Cross multiply
   158,000.50x = 338,144.50 × 338,144.50
4. Step 4: Simplify right side
   158,000.50x = 114,341,702,880.25
5. Step 5: Solve for x
   x = 114,341,702,880.25/158,000.50
6. Step 6: Final answer
   x = 723,679.37