Finding the Third Proportional to 322,899 and 443,254

Step by Step Solution

1. Step 1: Write the proportion equation
   322,899 : 443,254 = 443,254 : x
2. Step 2: Convert to fraction form
   322,899/443,254 = 443,254/x
3. Step 3: Cross multiply
   322,899x = 443,254 × 443,254
4. Step 4: Simplify right side
   322,899x = 196,474,108,516
5. Step 5: Solve for x
   x = 196,474,108,516/322,899
6. Step 6: Final answer
   x = 608,469.24