Finding the Third Proportional to 143,924 and 215,904

Step by Step Solution

1. Step 1: Write the proportion equation
   143,924 : 215,904 = 215,904 : x
2. Step 2: Convert to fraction form
   143,924/215,904 = 215,904/x
3. Step 3: Cross multiply
   143,924x = 215,904 × 215,904
4. Step 4: Simplify right side
   143,924x = 46,614,537,216
5. Step 5: Solve for x
   x = 46,614,537,216/143,924
6. Step 6: Final answer
   x = 323,883.00