Finding the Third Proportional to 140,884.50 and 308,631

Step by Step Solution

1. Step 1: Write the proportion equation
   140,884.50 : 308,631 = 308,631 : x
2. Step 2: Convert to fraction form
   140,884.50/308,631 = 308,631/x
3. Step 3: Cross multiply
   140,884.50x = 308,631 × 308,631
4. Step 4: Simplify right side
   140,884.50x = 95,253,094,161
5. Step 5: Solve for x
   x = 95,253,094,161/140,884.50
6. Step 6: Final answer
   x = 676,107.69