Finding the Third Proportional to 140,670 and 301,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,670 : 301,738.50 = 301,738.50 : x
2. Step 2: Convert to fraction form
   140,670/301,738.50 = 301,738.50/x
3. Step 3: Cross multiply
   140,670x = 301,738.50 × 301,738.50
4. Step 4: Simplify right side
   140,670x = 91,046,122,382.25
5. Step 5: Solve for x
   x = 91,046,122,382.25/140,670
6. Step 6: Final answer
   x = 647,231.98