Finding the Third Proportional to 2,128,608 and 3,130,542

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,608 : 3,130,542 = 3,130,542 : x
2. Step 2: Convert to fraction form
   2,128,608/3,130,542 = 3,130,542/x
3. Step 3: Cross multiply
   2,128,608x = 3,130,542 × 3,130,542
4. Step 4: Simplify right side
   2,128,608x = 9,800,293,213,764
5. Step 5: Solve for x
   x = 9,800,293,213,764/2,128,608
6. Step 6: Final answer
   x = 4,604,085.49