Finding the Third Proportional to 485,405 and 1,009,546

Step by Step Solution

1. Step 1: Write the proportion equation
   485,405 : 1,009,546 = 1,009,546 : x
2. Step 2: Convert to fraction form
   485,405/1,009,546 = 1,009,546/x
3. Step 3: Cross multiply
   485,405x = 1,009,546 × 1,009,546
4. Step 4: Simplify right side
   485,405x = 1,019,183,126,116
5. Step 5: Solve for x
   x = 1,019,183,126,116/485,405
6. Step 6: Final answer
   x = 2,099,655.19