Finding the Third Proportional to 1,439,397 and 3,078,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,397 : 3,078,108 = 3,078,108 : x
2. Step 2: Convert to fraction form
   1,439,397/3,078,108 = 3,078,108/x
3. Step 3: Cross multiply
   1,439,397x = 3,078,108 × 3,078,108
4. Step 4: Simplify right side
   1,439,397x = 9,474,748,859,664
5. Step 5: Solve for x
   x = 9,474,748,859,664/1,439,397
6. Step 6: Final answer
   x = 6,582,443.11