Finding the Third Proportional to 158,620.50 and 343,377

Step by Step Solution

1. Step 1: Write the proportion equation
   158,620.50 : 343,377 = 343,377 : x
2. Step 2: Convert to fraction form
   158,620.50/343,377 = 343,377/x
3. Step 3: Cross multiply
   158,620.50x = 343,377 × 343,377
4. Step 4: Simplify right side
   158,620.50x = 117,907,764,129
5. Step 5: Solve for x
   x = 117,907,764,129/158,620.50
6. Step 6: Final answer
   x = 743,332.45