Finding the Third Proportional to 144,232 and 215,147

Step by Step Solution

1. Step 1: Write the proportion equation
   144,232 : 215,147 = 215,147 : x
2. Step 2: Convert to fraction form
   144,232/215,147 = 215,147/x
3. Step 3: Cross multiply
   144,232x = 215,147 × 215,147
4. Step 4: Simplify right side
   144,232x = 46,288,231,609
5. Step 5: Solve for x
   x = 46,288,231,609/144,232
6. Step 6: Final answer
   x = 320,929.00