Finding the Third Proportional to 140,150.25 and 315,383.63

Step by Step Solution

1. Step 1: Write the proportion equation
   140,150.25 : 315,383.63 = 315,383.63 : x
2. Step 2: Convert to fraction form
   140,150.25/315,383.63 = 315,383.63/x
3. Step 3: Cross multiply
   140,150.25x = 315,383.63 × 315,383.63
4. Step 4: Simplify right side
   140,150.25x = 99,466,830,918.14
5. Step 5: Solve for x
   x = 99,466,830,918.14/140,150.25
6. Step 6: Final answer
   x = 709,715.69