Finding the Third Proportional to 637,734 and 1,399,868

Step by Step Solution

1. Step 1: Write the proportion equation
   637,734 : 1,399,868 = 1,399,868 : x
2. Step 2: Convert to fraction form
   637,734/1,399,868 = 1,399,868/x
3. Step 3: Cross multiply
   637,734x = 1,399,868 × 1,399,868
4. Step 4: Simplify right side
   637,734x = 1,959,630,417,424
5. Step 5: Solve for x
   x = 1,959,630,417,424/637,734
6. Step 6: Final answer
   x = 3,072,802.17