Finding the Third Proportional to 156,258 and 323,595

Step by Step Solution

1. Step 1: Write the proportion equation
   156,258 : 323,595 = 323,595 : x
2. Step 2: Convert to fraction form
   156,258/323,595 = 323,595/x
3. Step 3: Cross multiply
   156,258x = 323,595 × 323,595
4. Step 4: Simplify right side
   156,258x = 104,713,724,025
5. Step 5: Solve for x
   x = 104,713,724,025/156,258
6. Step 6: Final answer
   x = 670,133.52