Finding the Third Proportional to 635,278 and 1,396,500

Step by Step Solution

1. Step 1: Write the proportion equation
   635,278 : 1,396,500 = 1,396,500 : x
2. Step 2: Convert to fraction form
   635,278/1,396,500 = 1,396,500/x
3. Step 3: Cross multiply
   635,278x = 1,396,500 × 1,396,500
4. Step 4: Simplify right side
   635,278x = 1,950,212,250,000
5. Step 5: Solve for x
   x = 1,950,212,250,000/635,278
6. Step 6: Final answer
   x = 3,069,856.43