Finding the Third Proportional to 151,434 and 318,552.75

Step by Step Solution

1. Step 1: Write the proportion equation
   151,434 : 318,552.75 = 318,552.75 : x
2. Step 2: Convert to fraction form
   151,434/318,552.75 = 318,552.75/x
3. Step 3: Cross multiply
   151,434x = 318,552.75 × 318,552.75
4. Step 4: Simplify right side
   151,434x = 101,475,854,532.56
5. Step 5: Solve for x
   x = 101,475,854,532.56/151,434
6. Step 6: Final answer
   x = 670,099.55