Finding the Third Proportional to 146,140.50 and 313,308

Step by Step Solution

1. Step 1: Write the proportion equation
   146,140.50 : 313,308 = 313,308 : x
2. Step 2: Convert to fraction form
   146,140.50/313,308 = 313,308/x
3. Step 3: Cross multiply
   146,140.50x = 313,308 × 313,308
4. Step 4: Simplify right side
   146,140.50x = 98,161,902,864
5. Step 5: Solve for x
   x = 98,161,902,864/146,140.50
6. Step 6: Final answer
   x = 671,695.41