Finding the Third Proportional to 637,758 and 1,399,916

Step by Step Solution

1. Step 1: Write the proportion equation
   637,758 : 1,399,916 = 1,399,916 : x
2. Step 2: Convert to fraction form
   637,758/1,399,916 = 1,399,916/x
3. Step 3: Cross multiply
   637,758x = 1,399,916 × 1,399,916
4. Step 4: Simplify right side
   637,758x = 1,959,764,807,056
5. Step 5: Solve for x
   x = 1,959,764,807,056/637,758
6. Step 6: Final answer
   x = 3,072,897.25