Finding the Third Proportional to 328,996 and 445,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,996 : 445,810.50 = 445,810.50 : x
2. Step 2: Convert to fraction form
   328,996/445,810.50 = 445,810.50/x
3. Step 3: Cross multiply
   328,996x = 445,810.50 × 445,810.50
4. Step 4: Simplify right side
   328,996x = 198,747,001,910.25
5. Step 5: Solve for x
   x = 198,747,001,910.25/328,996
6. Step 6: Final answer
   x = 604,101.58