Finding the Third Proportional to 64,726.50 and 144,519

Step by Step Solution

1. Step 1: Write the proportion equation
   64,726.50 : 144,519 = 144,519 : x
2. Step 2: Convert to fraction form
   64,726.50/144,519 = 144,519/x
3. Step 3: Cross multiply
   64,726.50x = 144,519 × 144,519
4. Step 4: Simplify right side
   64,726.50x = 20,885,741,361
5. Step 5: Solve for x
   x = 20,885,741,361/64,726.50
6. Step 6: Final answer
   x = 322,676.82