Finding the Third Proportional to 409,922 and 900,550

Step by Step Solution

1. Step 1: Write the proportion equation
   409,922 : 900,550 = 900,550 : x
2. Step 2: Convert to fraction form
   409,922/900,550 = 900,550/x
3. Step 3: Cross multiply
   409,922x = 900,550 × 900,550
4. Step 4: Simplify right side
   409,922x = 810,990,302,500
5. Step 5: Solve for x
   x = 810,990,302,500/409,922
6. Step 6: Final answer
   x = 1,978,401.51