Finding the Third Proportional to 71,021 and 155,405

Step by Step Solution

1. Step 1: Write the proportion equation
   71,021 : 155,405 = 155,405 : x
2. Step 2: Convert to fraction form
   71,021/155,405 = 155,405/x
3. Step 3: Cross multiply
   71,021x = 155,405 × 155,405
4. Step 4: Simplify right side
   71,021x = 24,150,714,025
5. Step 5: Solve for x
   x = 24,150,714,025/71,021
6. Step 6: Final answer
   x = 340,050.32