Finding the Third Proportional to 144,114 and 215,595

Step by Step Solution

1. Step 1: Write the proportion equation
   144,114 : 215,595 = 215,595 : x
2. Step 2: Convert to fraction form
   144,114/215,595 = 215,595/x
3. Step 3: Cross multiply
   144,114x = 215,595 × 215,595
4. Step 4: Simplify right side
   144,114x = 46,481,204,025
5. Step 5: Solve for x
   x = 46,481,204,025/144,114
6. Step 6: Final answer
   x = 322,530.80