Finding the Third Proportional to 485,019 and 1,058,142

Step by Step Solution

1. Step 1: Write the proportion equation
   485,019 : 1,058,142 = 1,058,142 : x
2. Step 2: Convert to fraction form
   485,019/1,058,142 = 1,058,142/x
3. Step 3: Cross multiply
   485,019x = 1,058,142 × 1,058,142
4. Step 4: Simplify right side
   485,019x = 1,119,664,492,164
5. Step 5: Solve for x
   x = 1,119,664,492,164/485,019
6. Step 6: Final answer
   x = 2,308,496.15