Finding the Third Proportional to 158,404.50 and 329,914.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,404.50 : 329,914.50 = 329,914.50 : x
2. Step 2: Convert to fraction form
   158,404.50/329,914.50 = 329,914.50/x
3. Step 3: Cross multiply
   158,404.50x = 329,914.50 × 329,914.50
4. Step 4: Simplify right side
   158,404.50x = 108,843,577,310.25
5. Step 5: Solve for x
   x = 108,843,577,310.25/158,404.50
6. Step 6: Final answer
   x = 687,124.28