Finding the Third Proportional to 156,885.75 and 323,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,885.75 : 323,059.50 = 323,059.50 : x
2. Step 2: Convert to fraction form
   156,885.75/323,059.50 = 323,059.50/x
3. Step 3: Cross multiply
   156,885.75x = 323,059.50 × 323,059.50
4. Step 4: Simplify right side
   156,885.75x = 104,367,440,540.25
5. Step 5: Solve for x
   x = 104,367,440,540.25/156,885.75
6. Step 6: Final answer
   x = 665,244.87