Finding the Third Proportional to 555,919 and 1,213,796

Step by Step Solution

1. Step 1: Write the proportion equation
   555,919 : 1,213,796 = 1,213,796 : x
2. Step 2: Convert to fraction form
   555,919/1,213,796 = 1,213,796/x
3. Step 3: Cross multiply
   555,919x = 1,213,796 × 1,213,796
4. Step 4: Simplify right side
   555,919x = 1,473,300,729,616
5. Step 5: Solve for x
   x = 1,473,300,729,616/555,919
6. Step 6: Final answer
   x = 2,650,207.55