Finding the Third Proportional to 201,820 and 443,000

Step by Step Solution

1. Step 1: Write the proportion equation
   201,820 : 443,000 = 443,000 : x
2. Step 2: Convert to fraction form
   201,820/443,000 = 443,000/x
3. Step 3: Cross multiply
   201,820x = 443,000 × 443,000
4. Step 4: Simplify right side
   201,820x = 196,249,000,000
5. Step 5: Solve for x
   x = 196,249,000,000/201,820
6. Step 6: Final answer
   x = 972,396.19