Finding the Third Proportional to 1,355,390 and 1,806,942

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,390 : 1,806,942 = 1,806,942 : x
2. Step 2: Convert to fraction form
   1,355,390/1,806,942 = 1,806,942/x
3. Step 3: Cross multiply
   1,355,390x = 1,806,942 × 1,806,942
4. Step 4: Simplify right side
   1,355,390x = 3,265,039,391,364
5. Step 5: Solve for x
   x = 3,265,039,391,364/1,355,390
6. Step 6: Final answer
   x = 2,408,929.82