Finding the Third Proportional to 144,906.47 and 213,166.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,906.47 : 213,166.69 = 213,166.69 : x
2. Step 2: Convert to fraction form
   144,906.47/213,166.69 = 213,166.69/x
3. Step 3: Cross multiply
   144,906.47x = 213,166.69 × 213,166.69
4. Step 4: Simplify right side
   144,906.47x = 45,440,036,659.72
5. Step 5: Solve for x
   x = 45,440,036,659.72/144,906.47
6. Step 6: Final answer
   x = 313,581.84