Finding the Third Proportional to 1,974,890 and 2,647,407

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974,890 : 2,647,407 = 2,647,407 : x
2. Step 2: Convert to fraction form
   1,974,890/2,647,407 = 2,647,407/x
3. Step 3: Cross multiply
   1,974,890x = 2,647,407 × 2,647,407
4. Step 4: Simplify right side
   1,974,890x = 7,008,763,823,649
5. Step 5: Solve for x
   x = 7,008,763,823,649/1,974,890
6. Step 6: Final answer
   x = 3,548,938.84