Finding the Third Proportional to 555,956 and 1,213,856

Step by Step Solution

1. Step 1: Write the proportion equation
   555,956 : 1,213,856 = 1,213,856 : x
2. Step 2: Convert to fraction form
   555,956/1,213,856 = 1,213,856/x
3. Step 3: Cross multiply
   555,956x = 1,213,856 × 1,213,856
4. Step 4: Simplify right side
   555,956x = 1,473,446,388,736
5. Step 5: Solve for x
   x = 1,473,446,388,736/555,956
6. Step 6: Final answer
   x = 2,650,293.17