Finding the Third Proportional to 205,128 and 443,061

Step by Step Solution

1. Step 1: Write the proportion equation
   205,128 : 443,061 = 443,061 : x
2. Step 2: Convert to fraction form
   205,128/443,061 = 443,061/x
3. Step 3: Cross multiply
   205,128x = 443,061 × 443,061
4. Step 4: Simplify right side
   205,128x = 196,303,049,721
5. Step 5: Solve for x
   x = 196,303,049,721/205,128
6. Step 6: Final answer
   x = 956,978.32