Finding the Third Proportional to 144,212 and 308,352

Step by Step Solution

1. Step 1: Write the proportion equation
   144,212 : 308,352 = 308,352 : x
2. Step 2: Convert to fraction form
   144,212/308,352 = 308,352/x
3. Step 3: Cross multiply
   144,212x = 308,352 × 308,352
4. Step 4: Simplify right side
   144,212x = 95,080,955,904
5. Step 5: Solve for x
   x = 95,080,955,904/144,212
6. Step 6: Final answer
   x = 659,313.76