Finding the Third Proportional to 445,248 and 990,016

Step by Step Solution

1. Step 1: Write the proportion equation
   445,248 : 990,016 = 990,016 : x
2. Step 2: Convert to fraction form
   445,248/990,016 = 990,016/x
3. Step 3: Cross multiply
   445,248x = 990,016 × 990,016
4. Step 4: Simplify right side
   445,248x = 980,131,680,256
5. Step 5: Solve for x
   x = 980,131,680,256/445,248
6. Step 6: Final answer
   x = 2,201,316.30