Finding the Third Proportional to 1,605,840 and 3,489,024

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,840 : 3,489,024 = 3,489,024 : x
2. Step 2: Convert to fraction form
   1,605,840/3,489,024 = 3,489,024/x
3. Step 3: Cross multiply
   1,605,840x = 3,489,024 × 3,489,024
4. Step 4: Simplify right side
   1,605,840x = 12,173,288,472,576
5. Step 5: Solve for x
   x = 12,173,288,472,576/1,605,840
6. Step 6: Final answer
   x = 7,580,635.97