Finding the Third Proportional to 42,776 and 67,192

Step by Step Solution

1. Step 1: Write the proportion equation
   42,776 : 67,192 = 67,192 : x
2. Step 2: Convert to fraction form
   42,776/67,192 = 67,192/x
3. Step 3: Cross multiply
   42,776x = 67,192 × 67,192
4. Step 4: Simplify right side
   42,776x = 4,514,764,864
5. Step 5: Solve for x
   x = 4,514,764,864/42,776
6. Step 6: Final answer
   x = 105,544.34