Finding the Third Proportional to 1,439,418 and 3,078,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,418 : 3,078,144 = 3,078,144 : x
2. Step 2: Convert to fraction form
   1,439,418/3,078,144 = 3,078,144/x
3. Step 3: Cross multiply
   1,439,418x = 3,078,144 × 3,078,144
4. Step 4: Simplify right side
   1,439,418x = 9,474,970,484,736
5. Step 5: Solve for x
   x = 9,474,970,484,736/1,439,418
6. Step 6: Final answer
   x = 6,582,501.04