Finding the Third Proportional to 141,613 and 308,990

Step by Step Solution

1. Step 1: Write the proportion equation
   141,613 : 308,990 = 308,990 : x
2. Step 2: Convert to fraction form
   141,613/308,990 = 308,990/x
3. Step 3: Cross multiply
   141,613x = 308,990 × 308,990
4. Step 4: Simplify right side
   141,613x = 95,474,820,100
5. Step 5: Solve for x
   x = 95,474,820,100/141,613
6. Step 6: Final answer
   x = 674,195.31