Finding the Third Proportional to 485,020 and 1,058,144

Step by Step Solution

1. Step 1: Write the proportion equation
   485,020 : 1,058,144 = 1,058,144 : x
2. Step 2: Convert to fraction form
   485,020/1,058,144 = 1,058,144/x
3. Step 3: Cross multiply
   485,020x = 1,058,144 × 1,058,144
4. Step 4: Simplify right side
   485,020x = 1,119,668,724,736
5. Step 5: Solve for x
   x = 1,119,668,724,736/485,020
6. Step 6: Final answer
   x = 2,308,500.11