Finding the Third Proportional to 1,286,612 and 1,892,492

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,612 : 1,892,492 = 1,892,492 : x
2. Step 2: Convert to fraction form
   1,286,612/1,892,492 = 1,892,492/x
3. Step 3: Cross multiply
   1,286,612x = 1,892,492 × 1,892,492
4. Step 4: Simplify right side
   1,286,612x = 3,581,525,970,064
5. Step 5: Solve for x
   x = 3,581,525,970,064/1,286,612
6. Step 6: Final answer
   x = 2,783,687.68