Finding the Third Proportional to 141,448 and 308,144

Step by Step Solution

1. Step 1: Write the proportion equation
   141,448 : 308,144 = 308,144 : x
2. Step 2: Convert to fraction form
   141,448/308,144 = 308,144/x
3. Step 3: Cross multiply
   141,448x = 308,144 × 308,144
4. Step 4: Simplify right side
   141,448x = 94,952,724,736
5. Step 5: Solve for x
   x = 94,952,724,736/141,448
6. Step 6: Final answer
   x = 671,290.68