Finding the Third Proportional to 635,688 and 1,323,648

Step by Step Solution

1. Step 1: Write the proportion equation
   635,688 : 1,323,648 = 1,323,648 : x
2. Step 2: Convert to fraction form
   635,688/1,323,648 = 1,323,648/x
3. Step 3: Cross multiply
   635,688x = 1,323,648 × 1,323,648
4. Step 4: Simplify right side
   635,688x = 1,752,044,027,904
5. Step 5: Solve for x
   x = 1,752,044,027,904/635,688
6. Step 6: Final answer
   x = 2,756,138.28