Finding the Third Proportional to 145,560 and 308,616

Step by Step Solution

1. Step 1: Write the proportion equation
   145,560 : 308,616 = 308,616 : x
2. Step 2: Convert to fraction form
   145,560/308,616 = 308,616/x
3. Step 3: Cross multiply
   145,560x = 308,616 × 308,616
4. Step 4: Simplify right side
   145,560x = 95,243,835,456
5. Step 5: Solve for x
   x = 95,243,835,456/145,560
6. Step 6: Final answer
   x = 654,326.98