Finding the Third Proportional to 156,264 and 323,600

Step by Step Solution

1. Step 1: Write the proportion equation
   156,264 : 323,600 = 323,600 : x
2. Step 2: Convert to fraction form
   156,264/323,600 = 323,600/x
3. Step 3: Cross multiply
   156,264x = 323,600 × 323,600
4. Step 4: Simplify right side
   156,264x = 104,716,960,000
5. Step 5: Solve for x
   x = 104,716,960,000/156,264
6. Step 6: Final answer
   x = 670,128.50