Finding the Third Proportional to 144,342 and 207,901.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,342 : 207,901.69 = 207,901.69 : x
2. Step 2: Convert to fraction form
   144,342/207,901.69 = 207,901.69/x
3. Step 3: Cross multiply
   144,342x = 207,901.69 × 207,901.69
4. Step 4: Simplify right side
   144,342x = 43,223,111,665.35
5. Step 5: Solve for x
   x = 43,223,111,665.35/144,342
6. Step 6: Final answer
   x = 299,449.31