Finding the Third Proportional to 635,838 and 1,397,166

Step by Step Solution

1. Step 1: Write the proportion equation
   635,838 : 1,397,166 = 1,397,166 : x
2. Step 2: Convert to fraction form
   635,838/1,397,166 = 1,397,166/x
3. Step 3: Cross multiply
   635,838x = 1,397,166 × 1,397,166
4. Step 4: Simplify right side
   635,838x = 1,952,072,831,556
5. Step 5: Solve for x
   x = 1,952,072,831,556/635,838
6. Step 6: Final answer
   x = 3,070,078.91