Finding the Third Proportional to 3,139,360 and 4,709,040

Step by Step Solution

1. Step 1: Write the proportion equation
   3,139,360 : 4,709,040 = 4,709,040 : x
2. Step 2: Convert to fraction form
   3,139,360/4,709,040 = 4,709,040/x
3. Step 3: Cross multiply
   3,139,360x = 4,709,040 × 4,709,040
4. Step 4: Simplify right side
   3,139,360x = 22,175,057,721,600
5. Step 5: Solve for x
   x = 22,175,057,721,600/3,139,360
6. Step 6: Final answer
   x = 7,063,560