Finding the Third Proportional to 322,888 and 443,238

Step by Step Solution

1. Step 1: Write the proportion equation
   322,888 : 443,238 = 443,238 : x
2. Step 2: Convert to fraction form
   322,888/443,238 = 443,238/x
3. Step 3: Cross multiply
   322,888x = 443,238 × 443,238
4. Step 4: Simplify right side
   322,888x = 196,459,924,644
5. Step 5: Solve for x
   x = 196,459,924,644/322,888
6. Step 6: Final answer
   x = 608,446.04