Finding the Third Proportional to 203,570 and 447,300

Step by Step Solution

1. Step 1: Write the proportion equation
   203,570 : 447,300 = 447,300 : x
2. Step 2: Convert to fraction form
   203,570/447,300 = 447,300/x
3. Step 3: Cross multiply
   203,570x = 447,300 × 447,300
4. Step 4: Simplify right side
   203,570x = 200,077,290,000
5. Step 5: Solve for x
   x = 200,077,290,000/203,570
6. Step 6: Final answer
   x = 982,842.71