Finding the Third Proportional to 2,477,648 and 5,485,921

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477,648 : 5,485,921 = 5,485,921 : x
2. Step 2: Convert to fraction form
   2,477,648/5,485,921 = 5,485,921/x
3. Step 3: Cross multiply
   2,477,648x = 5,485,921 × 5,485,921
4. Step 4: Simplify right side
   2,477,648x = 30,095,329,218,241
5. Step 5: Solve for x
   x = 30,095,329,218,241/2,477,648
6. Step 6: Final answer
   x = 12,146,733.20