Finding the Third Proportional to 168,644.25 and 359,136

Step by Step Solution

1. Step 1: Write the proportion equation
   168,644.25 : 359,136 = 359,136 : x
2. Step 2: Convert to fraction form
   168,644.25/359,136 = 359,136/x
3. Step 3: Cross multiply
   168,644.25x = 359,136 × 359,136
4. Step 4: Simplify right side
   168,644.25x = 128,978,666,496
5. Step 5: Solve for x
   x = 128,978,666,496/168,644.25
6. Step 6: Final answer
   x = 764,797.30