Finding the Third Proportional to 1,286,586 and 1,892,457

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,586 : 1,892,457 = 1,892,457 : x
2. Step 2: Convert to fraction form
   1,286,586/1,892,457 = 1,892,457/x
3. Step 3: Cross multiply
   1,286,586x = 1,892,457 × 1,892,457
4. Step 4: Simplify right side
   1,286,586x = 3,581,393,496,849
5. Step 5: Solve for x
   x = 3,581,393,496,849/1,286,586
6. Step 6: Final answer
   x = 2,783,640.97