Finding the Third Proportional to 445,196.25 and 990,063

Step by Step Solution

1. Step 1: Write the proportion equation
   445,196.25 : 990,063 = 990,063 : x
2. Step 2: Convert to fraction form
   445,196.25/990,063 = 990,063/x
3. Step 3: Cross multiply
   445,196.25x = 990,063 × 990,063
4. Step 4: Simplify right side
   445,196.25x = 980,224,743,969
5. Step 5: Solve for x
   x = 980,224,743,969/445,196.25
6. Step 6: Final answer
   x = 2,201,781.22