Finding the Third Proportional to 328,995 and 706,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,995 : 706,945.50 = 706,945.50 : x
2. Step 2: Convert to fraction form
   328,995/706,945.50 = 706,945.50/x
3. Step 3: Cross multiply
   328,995x = 706,945.50 × 706,945.50
4. Step 4: Simplify right side
   328,995x = 499,771,939,970.25
5. Step 5: Solve for x
   x = 499,771,939,970.25/328,995
6. Step 6: Final answer
   x = 1,519,086.73