Finding the Third Proportional to 140,956 and 307,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,956 : 307,359.50 = 307,359.50 : x
2. Step 2: Convert to fraction form
   140,956/307,359.50 = 307,359.50/x
3. Step 3: Cross multiply
   140,956x = 307,359.50 × 307,359.50
4. Step 4: Simplify right side
   140,956x = 94,469,862,240.25
5. Step 5: Solve for x
   x = 94,469,862,240.25/140,956
6. Step 6: Final answer
   x = 670,208.17