Finding the Third Proportional to 1,521,500 and 2,354,678

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,500 : 2,354,678 = 2,354,678 : x
2. Step 2: Convert to fraction form
   1,521,500/2,354,678 = 2,354,678/x
3. Step 3: Cross multiply
   1,521,500x = 2,354,678 × 2,354,678
4. Step 4: Simplify right side
   1,521,500x = 5,544,508,483,684
5. Step 5: Solve for x
   x = 5,544,508,483,684/1,521,500
6. Step 6: Final answer
   x = 3,644,106.79