Finding the Third Proportional to 153,382.50 and 328,089

Step by Step Solution

1. Step 1: Write the proportion equation
   153,382.50 : 328,089 = 328,089 : x
2. Step 2: Convert to fraction form
   153,382.50/328,089 = 328,089/x
3. Step 3: Cross multiply
   153,382.50x = 328,089 × 328,089
4. Step 4: Simplify right side
   153,382.50x = 107,642,391,921
5. Step 5: Solve for x
   x = 107,642,391,921/153,382.50
6. Step 6: Final answer
   x = 701,790.57