Finding the Third Proportional to 42,912 and 67,077

Step by Step Solution

1. Step 1: Write the proportion equation
   42,912 : 67,077 = 67,077 : x
2. Step 2: Convert to fraction form
   42,912/67,077 = 67,077/x
3. Step 3: Cross multiply
   42,912x = 67,077 × 67,077
4. Step 4: Simplify right side
   42,912x = 4,499,323,929
5. Step 5: Solve for x
   x = 4,499,323,929/42,912
6. Step 6: Final answer
   x = 104,850.02