Finding the Third Proportional to 1,286,234 and 1,993,638

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,234 : 1,993,638 = 1,993,638 : x
2. Step 2: Convert to fraction form
   1,286,234/1,993,638 = 1,993,638/x
3. Step 3: Cross multiply
   1,286,234x = 1,993,638 × 1,993,638
4. Step 4: Simplify right side
   1,286,234x = 3,974,592,475,044
5. Step 5: Solve for x
   x = 3,974,592,475,044/1,286,234
6. Step 6: Final answer
   x = 3,090,100.62