Finding the Third Proportional to 7,740,900 and 10,826,940

Step by Step Solution

1. Step 1: Write the proportion equation
   7,740,900 : 10,826,940 = 10,826,940 : x
2. Step 2: Convert to fraction form
   7,740,900/10,826,940 = 10,826,940/x
3. Step 3: Cross multiply
   7,740,900x = 10,826,940 × 10,826,940
4. Step 4: Simplify right side
   7,740,900x = 117,222,629,763,600
5. Step 5: Solve for x
   x = 117,222,629,763,600/7,740,900
6. Step 6: Final answer
   x = 15,143,281.76