Finding the Third Proportional to 1,238,683 and 1,914,405

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,683 : 1,914,405 = 1,914,405 : x
2. Step 2: Convert to fraction form
   1,238,683/1,914,405 = 1,914,405/x
3. Step 3: Cross multiply
   1,238,683x = 1,914,405 × 1,914,405
4. Step 4: Simplify right side
   1,238,683x = 3,664,946,504,025
5. Step 5: Solve for x
   x = 3,664,946,504,025/1,238,683
6. Step 6: Final answer
   x = 2,958,744.49