Finding the Third Proportional to 226,128 and 491,136

Step by Step Solution

1. Step 1: Write the proportion equation
   226,128 : 491,136 = 491,136 : x
2. Step 2: Convert to fraction form
   226,128/491,136 = 491,136/x
3. Step 3: Cross multiply
   226,128x = 491,136 × 491,136
4. Step 4: Simplify right side
   226,128x = 241,214,570,496
5. Step 5: Solve for x
   x = 241,214,570,496/226,128
6. Step 6: Final answer
   x = 1,066,716.95