Finding the Third Proportional to 326,164.50 and 661,500

Step by Step Solution

1. Step 1: Write the proportion equation
   326,164.50 : 661,500 = 661,500 : x
2. Step 2: Convert to fraction form
   326,164.50/661,500 = 661,500/x
3. Step 3: Cross multiply
   326,164.50x = 661,500 × 661,500
4. Step 4: Simplify right side
   326,164.50x = 437,582,250,000
5. Step 5: Solve for x
   x = 437,582,250,000/326,164.50
6. Step 6: Final answer
   x = 1,341,599.87