Finding the Third Proportional to 144,244 and 314,732

Step by Step Solution

1. Step 1: Write the proportion equation
   144,244 : 314,732 = 314,732 : x
2. Step 2: Convert to fraction form
   144,244/314,732 = 314,732/x
3. Step 3: Cross multiply
   144,244x = 314,732 × 314,732
4. Step 4: Simplify right side
   144,244x = 99,056,231,824
5. Step 5: Solve for x
   x = 99,056,231,824/144,244
6. Step 6: Final answer
   x = 686,726.88