Finding the Third Proportional to 1,409,770 and 2,115,087

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409,770 : 2,115,087 = 2,115,087 : x
2. Step 2: Convert to fraction form
   1,409,770/2,115,087 = 2,115,087/x
3. Step 3: Cross multiply
   1,409,770x = 2,115,087 × 2,115,087
4. Step 4: Simplify right side
   1,409,770x = 4,473,593,017,569
5. Step 5: Solve for x
   x = 4,473,593,017,569/1,409,770
6. Step 6: Final answer
   x = 3,173,278.63