Finding the Third Proportional to 151,406 and 328,570

Step by Step Solution

1. Step 1: Write the proportion equation
   151,406 : 328,570 = 328,570 : x
2. Step 2: Convert to fraction form
   151,406/328,570 = 328,570/x
3. Step 3: Cross multiply
   151,406x = 328,570 × 328,570
4. Step 4: Simplify right side
   151,406x = 107,958,244,900
5. Step 5: Solve for x
   x = 107,958,244,900/151,406
6. Step 6: Final answer
   x = 713,038.09