Finding the Third Proportional to 33,429 and 67,405

Step by Step Solution

1. Step 1: Write the proportion equation
   33,429 : 67,405 = 67,405 : x
2. Step 2: Convert to fraction form
   33,429/67,405 = 67,405/x
3. Step 3: Cross multiply
   33,429x = 67,405 × 67,405
4. Step 4: Simplify right side
   33,429x = 4,543,434,025
5. Step 5: Solve for x
   x = 4,543,434,025/33,429
6. Step 6: Final answer
   x = 135,912.95