Finding the Third Proportional to 555,958 and 1,213,860

Step by Step Solution

1. Step 1: Write the proportion equation
   555,958 : 1,213,860 = 1,213,860 : x
2. Step 2: Convert to fraction form
   555,958/1,213,860 = 1,213,860/x
3. Step 3: Cross multiply
   555,958x = 1,213,860 × 1,213,860
4. Step 4: Simplify right side
   555,958x = 1,473,456,099,600
5. Step 5: Solve for x
   x = 1,473,456,099,600/555,958
6. Step 6: Final answer
   x = 2,650,301.10