Finding the Third Proportional to 2,560,379.96 and 5,485,962.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560,379.96 : 5,485,962.90 = 5,485,962.90 : x
2. Step 2: Convert to fraction form
   2,560,379.96/5,485,962.90 = 5,485,962.90/x
3. Step 3: Cross multiply
   2,560,379.96x = 5,485,962.90 × 5,485,962.90
4. Step 4: Simplify right side
   2,560,379.96x = 30,095,788,917,678.48
5. Step 5: Solve for x
   x = 30,095,788,917,678.48/2,560,379.96
6. Step 6: Final answer
   x = 11,754,422.93