Finding the Third Proportional to 2,620,346 and 5,555,612

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620,346 : 5,555,612 = 5,555,612 : x
2. Step 2: Convert to fraction form
   2,620,346/5,555,612 = 5,555,612/x
3. Step 3: Cross multiply
   2,620,346x = 5,555,612 × 5,555,612
4. Step 4: Simplify right side
   2,620,346x = 30,864,824,694,544
5. Step 5: Solve for x
   x = 30,864,824,694,544/2,620,346
6. Step 6: Final answer
   x = 11,778,911.90