Finding the Third Proportional to 2,622,820.50 and 5,644,218

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622,820.50 : 5,644,218 = 5,644,218 : x
2. Step 2: Convert to fraction form
   2,622,820.50/5,644,218 = 5,644,218/x
3. Step 3: Cross multiply
   2,622,820.50x = 5,644,218 × 5,644,218
4. Step 4: Simplify right side
   2,622,820.50x = 31,857,196,831,524
5. Step 5: Solve for x
   x = 31,857,196,831,524/2,622,820.50
6. Step 6: Final answer
   x = 12,146,159.77