Finding the Third Proportional to 148,382.50 and 328,787

Step by Step Solution

1. Step 1: Write the proportion equation
   148,382.50 : 328,787 = 328,787 : x
2. Step 2: Convert to fraction form
   148,382.50/328,787 = 328,787/x
3. Step 3: Cross multiply
   148,382.50x = 328,787 × 328,787
4. Step 4: Simplify right side
   148,382.50x = 108,100,891,369
5. Step 5: Solve for x
   x = 108,100,891,369/148,382.50
6. Step 6: Final answer
   x = 728,528.58