Finding the Third Proportional to 1,403,190 and 2,186,919

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,190 : 2,186,919 = 2,186,919 : x
2. Step 2: Convert to fraction form
   1,403,190/2,186,919 = 2,186,919/x
3. Step 3: Cross multiply
   1,403,190x = 2,186,919 × 2,186,919
4. Step 4: Simplify right side
   1,403,190x = 4,782,614,712,561
5. Step 5: Solve for x
   x = 4,782,614,712,561/1,403,190
6. Step 6: Final answer
   x = 3,408,387.11