Finding the Third Proportional to 155,527.50 and 327,657

Step by Step Solution

1. Step 1: Write the proportion equation
   155,527.50 : 327,657 = 327,657 : x
2. Step 2: Convert to fraction form
   155,527.50/327,657 = 327,657/x
3. Step 3: Cross multiply
   155,527.50x = 327,657 × 327,657
4. Step 4: Simplify right side
   155,527.50x = 107,359,109,649
5. Step 5: Solve for x
   x = 107,359,109,649/155,527.50
6. Step 6: Final answer
   x = 690,290.20