Finding the Third Proportional to 485,642 and 1,030,459

Step by Step Solution

1. Step 1: Write the proportion equation
   485,642 : 1,030,459 = 1,030,459 : x
2. Step 2: Convert to fraction form
   485,642/1,030,459 = 1,030,459/x
3. Step 3: Cross multiply
   485,642x = 1,030,459 × 1,030,459
4. Step 4: Simplify right side
   485,642x = 1,061,845,750,681
5. Step 5: Solve for x
   x = 1,061,845,750,681/485,642
6. Step 6: Final answer
   x = 2,186,478.42