Finding the Third Proportional to 146,146.50 and 313,434

Step by Step Solution

1. Step 1: Write the proportion equation
   146,146.50 : 313,434 = 313,434 : x
2. Step 2: Convert to fraction form
   146,146.50/313,434 = 313,434/x
3. Step 3: Cross multiply
   146,146.50x = 313,434 × 313,434
4. Step 4: Simplify right side
   146,146.50x = 98,240,872,356
5. Step 5: Solve for x
   x = 98,240,872,356/146,146.50
6. Step 6: Final answer
   x = 672,208.18