Finding the Third Proportional to 1,230,878 and 1,806,378

Step by Step Solution

1. Step 1: Write the proportion equation
   1,230,878 : 1,806,378 = 1,806,378 : x
2. Step 2: Convert to fraction form
   1,230,878/1,806,378 = 1,806,378/x
3. Step 3: Cross multiply
   1,230,878x = 1,806,378 × 1,806,378
4. Step 4: Simplify right side
   1,230,878x = 3,263,001,478,884
5. Step 5: Solve for x
   x = 3,263,001,478,884/1,230,878
6. Step 6: Final answer
   x = 2,650,954.42