Finding the Third Proportional to 42,358 and 67,005

Step by Step Solution

1. Step 1: Write the proportion equation
   42,358 : 67,005 = 67,005 : x
2. Step 2: Convert to fraction form
   42,358/67,005 = 67,005/x
3. Step 3: Cross multiply
   42,358x = 67,005 × 67,005
4. Step 4: Simplify right side
   42,358x = 4,489,670,025
5. Step 5: Solve for x
   x = 4,489,670,025/42,358
6. Step 6: Final answer
   x = 105,993.44