Finding the Third Proportional to 485,018 and 1,058,140

Step by Step Solution

1. Step 1: Write the proportion equation
   485,018 : 1,058,140 = 1,058,140 : x
2. Step 2: Convert to fraction form
   485,018/1,058,140 = 1,058,140/x
3. Step 3: Cross multiply
   485,018x = 1,058,140 × 1,058,140
4. Step 4: Simplify right side
   485,018x = 1,119,660,259,600
5. Step 5: Solve for x
   x = 1,119,660,259,600/485,018
6. Step 6: Final answer
   x = 2,308,492.18