Finding the Third Proportional to 1,385,792 and 3,130,040

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,792 : 3,130,040 = 3,130,040 : x
2. Step 2: Convert to fraction form
   1,385,792/3,130,040 = 3,130,040/x
3. Step 3: Cross multiply
   1,385,792x = 3,130,040 × 3,130,040
4. Step 4: Simplify right side
   1,385,792x = 9,797,150,401,600
5. Step 5: Solve for x
   x = 9,797,150,401,600/1,385,792
6. Step 6: Final answer
   x = 7,069,712.05