Finding the Third Proportional to 1,521,710 and 3,598,678

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,710 : 3,598,678 = 3,598,678 : x
2. Step 2: Convert to fraction form
   1,521,710/3,598,678 = 3,598,678/x
3. Step 3: Cross multiply
   1,521,710x = 3,598,678 × 3,598,678
4. Step 4: Simplify right side
   1,521,710x = 12,950,483,347,684
5. Step 5: Solve for x
   x = 12,950,483,347,684/1,521,710
6. Step 6: Final answer
   x = 8,510,480.54