Finding the Third Proportional to 637,734 and 1,399,870

Step by Step Solution

1. Step 1: Write the proportion equation
   637,734 : 1,399,870 = 1,399,870 : x
2. Step 2: Convert to fraction form
   637,734/1,399,870 = 1,399,870/x
3. Step 3: Cross multiply
   637,734x = 1,399,870 × 1,399,870
4. Step 4: Simplify right side
   637,734x = 1,959,636,016,900
5. Step 5: Solve for x
   x = 1,959,636,016,900/637,734
6. Step 6: Final answer
   x = 3,072,810.95