Finding the Third Proportional to 202,272 and 443,423

Step by Step Solution

1. Step 1: Write the proportion equation
   202,272 : 443,423 = 443,423 : x
2. Step 2: Convert to fraction form
   202,272/443,423 = 443,423/x
3. Step 3: Cross multiply
   202,272x = 443,423 × 443,423
4. Step 4: Simplify right side
   202,272x = 196,623,956,929
5. Step 5: Solve for x
   x = 196,623,956,929/202,272
6. Step 6: Final answer
   x = 972,076.99