Finding the Third Proportional to 155,499 and 327,601.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,499 : 327,601.50 = 327,601.50 : x
2. Step 2: Convert to fraction form
   155,499/327,601.50 = 327,601.50/x
3. Step 3: Cross multiply
   155,499x = 327,601.50 × 327,601.50
4. Step 4: Simplify right side
   155,499x = 107,322,742,802.25
5. Step 5: Solve for x
   x = 107,322,742,802.25/155,499
6. Step 6: Final answer
   x = 690,182.85