Finding the Third Proportional to 637,827 and 1,387,749

Step by Step Solution

1. Step 1: Write the proportion equation
   637,827 : 1,387,749 = 1,387,749 : x
2. Step 2: Convert to fraction form
   637,827/1,387,749 = 1,387,749/x
3. Step 3: Cross multiply
   637,827x = 1,387,749 × 1,387,749
4. Step 4: Simplify right side
   637,827x = 1,925,847,287,001
5. Step 5: Solve for x
   x = 1,925,847,287,001/637,827
6. Step 6: Final answer
   x = 3,019,388.15