Finding the Third Proportional to 141,577 and 308,020

Step by Step Solution

1. Step 1: Write the proportion equation
   141,577 : 308,020 = 308,020 : x
2. Step 2: Convert to fraction form
   141,577/308,020 = 308,020/x
3. Step 3: Cross multiply
   141,577x = 308,020 × 308,020
4. Step 4: Simplify right side
   141,577x = 94,876,320,400
5. Step 5: Solve for x
   x = 94,876,320,400/141,577
6. Step 6: Final answer
   x = 670,139.36