Finding the Third Proportional to 1,513,890 and 3,306,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513,890 : 3,306,420 = 3,306,420 : x
2. Step 2: Convert to fraction form
   1,513,890/3,306,420 = 3,306,420/x
3. Step 3: Cross multiply
   1,513,890x = 3,306,420 × 3,306,420
4. Step 4: Simplify right side
   1,513,890x = 10,932,413,216,400
5. Step 5: Solve for x
   x = 10,932,413,216,400/1,513,890
6. Step 6: Final answer
   x = 7,221,405.26