Finding the Third Proportional to 42,984 and 68,384

Step by Step Solution

1. Step 1: Write the proportion equation
   42,984 : 68,384 = 68,384 : x
2. Step 2: Convert to fraction form
   42,984/68,384 = 68,384/x
3. Step 3: Cross multiply
   42,984x = 68,384 × 68,384
4. Step 4: Simplify right side
   42,984x = 4,676,371,456
5. Step 5: Solve for x
   x = 4,676,371,456/42,984
6. Step 6: Final answer
   x = 108,793.31