Finding the Third Proportional to 328,986 and 445,795.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,986 : 445,795.50 = 445,795.50 : x
2. Step 2: Convert to fraction form
   328,986/445,795.50 = 445,795.50/x
3. Step 3: Cross multiply
   328,986x = 445,795.50 × 445,795.50
4. Step 4: Simplify right side
   328,986x = 198,733,627,820.25
5. Step 5: Solve for x
   x = 198,733,627,820.25/328,986
6. Step 6: Final answer
   x = 604,079.29