Finding the Third Proportional to 1,247,859 and 2,684,864

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,859 : 2,684,864 = 2,684,864 : x
2. Step 2: Convert to fraction form
   1,247,859/2,684,864 = 2,684,864/x
3. Step 3: Cross multiply
   1,247,859x = 2,684,864 × 2,684,864
4. Step 4: Simplify right side
   1,247,859x = 7,208,494,698,496
5. Step 5: Solve for x
   x = 7,208,494,698,496/1,247,859
6. Step 6: Final answer
   x = 5,776,690.07