Finding the Third Proportional to 156,259.50 and 323,598

Step by Step Solution

1. Step 1: Write the proportion equation
   156,259.50 : 323,598 = 323,598 : x
2. Step 2: Convert to fraction form
   156,259.50/323,598 = 323,598/x
3. Step 3: Cross multiply
   156,259.50x = 323,598 × 323,598
4. Step 4: Simplify right side
   156,259.50x = 104,715,665,604
5. Step 5: Solve for x
   x = 104,715,665,604/156,259.50
6. Step 6: Final answer
   x = 670,139.52