Finding the Third Proportional to 637,749 and 1,399,900

Step by Step Solution

1. Step 1: Write the proportion equation
   637,749 : 1,399,900 = 1,399,900 : x
2. Step 2: Convert to fraction form
   637,749/1,399,900 = 1,399,900/x
3. Step 3: Cross multiply
   637,749x = 1,399,900 × 1,399,900
4. Step 4: Simplify right side
   637,749x = 1,959,720,010,000
5. Step 5: Solve for x
   x = 1,959,720,010,000/637,749
6. Step 6: Final answer
   x = 3,072,870.38