Finding the Third Proportional to 556,005 and 1,211,799

Step by Step Solution

1. Step 1: Write the proportion equation
   556,005 : 1,211,799 = 1,211,799 : x
2. Step 2: Convert to fraction form
   556,005/1,211,799 = 1,211,799/x
3. Step 3: Cross multiply
   556,005x = 1,211,799 × 1,211,799
4. Step 4: Simplify right side
   556,005x = 1,468,456,816,401
5. Step 5: Solve for x
   x = 1,468,456,816,401/556,005
6. Step 6: Final answer
   x = 2,641,085.63