Finding the Third Proportional to 5,578,560 and 7,855,704

Step by Step Solution

1. Step 1: Write the proportion equation
   5,578,560 : 7,855,704 = 7,855,704 : x
2. Step 2: Convert to fraction form
   5,578,560/7,855,704 = 7,855,704/x
3. Step 3: Cross multiply
   5,578,560x = 7,855,704 × 7,855,704
4. Step 4: Simplify right side
   5,578,560x = 61,712,085,335,616
5. Step 5: Solve for x
   x = 61,712,085,335,616/5,578,560
6. Step 6: Final answer
   x = 11,062,368.31