Finding the Third Proportional to 2,551,500 and 5,219,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,500 : 5,219,640 = 5,219,640 : x
2. Step 2: Convert to fraction form
   2,551,500/5,219,640 = 5,219,640/x
3. Step 3: Cross multiply
   2,551,500x = 5,219,640 × 5,219,640
4. Step 4: Simplify right side
   2,551,500x = 27,244,641,729,600
5. Step 5: Solve for x
   x = 27,244,641,729,600/2,551,500
6. Step 6: Final answer
   x = 10,677,892.11