Finding the Third Proportional to 1,280,502 and 1,917,405

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,502 : 1,917,405 = 1,917,405 : x
2. Step 2: Convert to fraction form
   1,280,502/1,917,405 = 1,917,405/x
3. Step 3: Cross multiply
   1,280,502x = 1,917,405 × 1,917,405
4. Step 4: Simplify right side
   1,280,502x = 3,676,441,934,025
5. Step 5: Solve for x
   x = 3,676,441,934,025/1,280,502
6. Step 6: Final answer
   x = 2,871,094.25