Finding the Third Proportional to 202,556 and 443,290

Step by Step Solution

1. Step 1: Write the proportion equation
   202,556 : 443,290 = 443,290 : x
2. Step 2: Convert to fraction form
   202,556/443,290 = 443,290/x
3. Step 3: Cross multiply
   202,556x = 443,290 × 443,290
4. Step 4: Simplify right side
   202,556x = 196,506,024,100
5. Step 5: Solve for x
   x = 196,506,024,100/202,556
6. Step 6: Final answer
   x = 970,131.84