Finding the Third Proportional to 133,048 and 289,061

Step by Step Solution

1. Step 1: Write the proportion equation
   133,048 : 289,061 = 289,061 : x
2. Step 2: Convert to fraction form
   133,048/289,061 = 289,061/x
3. Step 3: Cross multiply
   133,048x = 289,061 × 289,061
4. Step 4: Simplify right side
   133,048x = 83,556,261,721
5. Step 5: Solve for x
   x = 83,556,261,721/133,048
6. Step 6: Final answer
   x = 628,015.92