Finding the Third Proportional to 145,830 and 308,994

Step by Step Solution

1. Step 1: Write the proportion equation
   145,830 : 308,994 = 308,994 : x
2. Step 2: Convert to fraction form
   145,830/308,994 = 308,994/x
3. Step 3: Cross multiply
   145,830x = 308,994 × 308,994
4. Step 4: Simplify right side
   145,830x = 95,477,292,036
5. Step 5: Solve for x
   x = 95,477,292,036/145,830
6. Step 6: Final answer
   x = 654,716.40