Finding the Third Proportional to 155,527.50 and 327,660

Step by Step Solution

1. Step 1: Write the proportion equation
   155,527.50 : 327,660 = 327,660 : x
2. Step 2: Convert to fraction form
   155,527.50/327,660 = 327,660/x
3. Step 3: Cross multiply
   155,527.50x = 327,660 × 327,660
4. Step 4: Simplify right side
   155,527.50x = 107,361,075,600
5. Step 5: Solve for x
   x = 107,361,075,600/155,527.50
6. Step 6: Final answer
   x = 690,302.84