Finding the Third Proportional to 151,136 and 331,000

Step by Step Solution

1. Step 1: Write the proportion equation
   151,136 : 331,000 = 331,000 : x
2. Step 2: Convert to fraction form
   151,136/331,000 = 331,000/x
3. Step 3: Cross multiply
   151,136x = 331,000 × 331,000
4. Step 4: Simplify right side
   151,136x = 109,561,000,000
5. Step 5: Solve for x
   x = 109,561,000,000/151,136
6. Step 6: Final answer
   x = 724,916.63