Finding the Third Proportional to 453,647.25 and 990,306

Step by Step Solution

1. Step 1: Write the proportion equation
   453,647.25 : 990,306 = 990,306 : x
2. Step 2: Convert to fraction form
   453,647.25/990,306 = 990,306/x
3. Step 3: Cross multiply
   453,647.25x = 990,306 × 990,306
4. Step 4: Simplify right side
   453,647.25x = 980,705,973,636
5. Step 5: Solve for x
   x = 980,705,973,636/453,647.25
6. Step 6: Final answer
   x = 2,161,825.02