Finding the Third Proportional to 153,416 and 328,150

Step by Step Solution

1. Step 1: Write the proportion equation
   153,416 : 328,150 = 328,150 : x
2. Step 2: Convert to fraction form
   153,416/328,150 = 328,150/x
3. Step 3: Cross multiply
   153,416x = 328,150 × 328,150
4. Step 4: Simplify right side
   153,416x = 107,682,422,500
5. Step 5: Solve for x
   x = 107,682,422,500/153,416
6. Step 6: Final answer
   x = 701,898.25