Finding the Third Proportional to 43,789 and 67,942

Step by Step Solution

1. Step 1: Write the proportion equation
   43,789 : 67,942 = 67,942 : x
2. Step 2: Convert to fraction form
   43,789/67,942 = 67,942/x
3. Step 3: Cross multiply
   43,789x = 67,942 × 67,942
4. Step 4: Simplify right side
   43,789x = 4,616,115,364
5. Step 5: Solve for x
   x = 4,616,115,364/43,789
6. Step 6: Final answer
   x = 105,417.24