Finding the Third Proportional to 42,360 and 67,009

Step by Step Solution

1. Step 1: Write the proportion equation
   42,360 : 67,009 = 67,009 : x
2. Step 2: Convert to fraction form
   42,360/67,009 = 67,009/x
3. Step 3: Cross multiply
   42,360x = 67,009 × 67,009
4. Step 4: Simplify right side
   42,360x = 4,490,206,081
5. Step 5: Solve for x
   x = 4,490,206,081/42,360
6. Step 6: Final answer
   x = 106,001.09