Finding the Third Proportional to 1,355,270 and 1,806,780

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,270 : 1,806,780 = 1,806,780 : x
2. Step 2: Convert to fraction form
   1,355,270/1,806,780 = 1,806,780/x
3. Step 3: Cross multiply
   1,355,270x = 1,806,780 × 1,806,780
4. Step 4: Simplify right side
   1,355,270x = 3,264,453,968,400
5. Step 5: Solve for x
   x = 3,264,453,968,400/1,355,270
6. Step 6: Final answer
   x = 2,408,711.16