Finding the Third Proportional to 1,286,880 and 1,892,856

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,880 : 1,892,856 = 1,892,856 : x
2. Step 2: Convert to fraction form
   1,286,880/1,892,856 = 1,892,856/x
3. Step 3: Cross multiply
   1,286,880x = 1,892,856 × 1,892,856
4. Step 4: Simplify right side
   1,286,880x = 3,582,903,836,736
5. Step 5: Solve for x
   x = 3,582,903,836,736/1,286,880
6. Step 6: Final answer
   x = 2,784,178.66