Finding the Third Proportional to 158,311 and 323,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,311 : 323,081.50 = 323,081.50 : x
2. Step 2: Convert to fraction form
   158,311/323,081.50 = 323,081.50/x
3. Step 3: Cross multiply
   158,311x = 323,081.50 × 323,081.50
4. Step 4: Simplify right side
   158,311x = 104,381,655,642.25
5. Step 5: Solve for x
   x = 104,381,655,642.25/158,311
6. Step 6: Final answer
   x = 659,345.56