Finding the Third Proportional to 1,211,475 and 2,548,518

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,475 : 2,548,518 = 2,548,518 : x
2. Step 2: Convert to fraction form
   1,211,475/2,548,518 = 2,548,518/x
3. Step 3: Cross multiply
   1,211,475x = 2,548,518 × 2,548,518
4. Step 4: Simplify right side
   1,211,475x = 6,494,943,996,324
5. Step 5: Solve for x
   x = 6,494,943,996,324/1,211,475
6. Step 6: Final answer
   x = 5,361,186.98