Finding the Third Proportional to 890,236 and 1,886,419

Step by Step Solution

1. Step 1: Write the proportion equation
   890,236 : 1,886,419 = 1,886,419 : x
2. Step 2: Convert to fraction form
   890,236/1,886,419 = 1,886,419/x
3. Step 3: Cross multiply
   890,236x = 1,886,419 × 1,886,419
4. Step 4: Simplify right side
   890,236x = 3,558,576,643,561
5. Step 5: Solve for x
   x = 3,558,576,643,561/890,236
6. Step 6: Final answer
   x = 3,997,340.75