Finding the Third Proportional to 243,329 and 325,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,329 : 325,485.50 = 325,485.50 : x
2. Step 2: Convert to fraction form
   243,329/325,485.50 = 325,485.50/x
3. Step 3: Cross multiply
   243,329x = 325,485.50 × 325,485.50
4. Step 4: Simplify right side
   243,329x = 105,940,810,710.25
5. Step 5: Solve for x
   x = 105,940,810,710.25/243,329
6. Step 6: Final answer
   x = 435,380.95