Finding the Third Proportional to 1,115,330 and 1,683,459

Step by Step Solution

1. Step 1: Write the proportion equation
   1,115,330 : 1,683,459 = 1,683,459 : x
2. Step 2: Convert to fraction form
   1,115,330/1,683,459 = 1,683,459/x
3. Step 3: Cross multiply
   1,115,330x = 1,683,459 × 1,683,459
4. Step 4: Simplify right side
   1,115,330x = 2,834,034,204,681
5. Step 5: Solve for x
   x = 2,834,034,204,681/1,115,330
6. Step 6: Final answer
   x = 2,540,982.67