Finding the Third Proportional to 292,118 and 443,666

Step by Step Solution

1. Step 1: Write the proportion equation
   292,118 : 443,666 = 443,666 : x
2. Step 2: Convert to fraction form
   292,118/443,666 = 443,666/x
3. Step 3: Cross multiply
   292,118x = 443,666 × 443,666
4. Step 4: Simplify right side
   292,118x = 196,839,519,556
5. Step 5: Solve for x
   x = 196,839,519,556/292,118
6. Step 6: Final answer
   x = 673,835.64