Finding the Third Proportional to 187,842 and 442,972

Step by Step Solution

1. Step 1: Write the proportion equation
   187,842 : 442,972 = 442,972 : x
2. Step 2: Convert to fraction form
   187,842/442,972 = 442,972/x
3. Step 3: Cross multiply
   187,842x = 442,972 × 442,972
4. Step 4: Simplify right side
   187,842x = 196,224,192,784
5. Step 5: Solve for x
   x = 196,224,192,784/187,842
6. Step 6: Final answer
   x = 1,044,623.63