Finding the Third Proportional to 144,606 and 216,141

Step by Step Solution

1. Step 1: Write the proportion equation
   144,606 : 216,141 = 216,141 : x
2. Step 2: Convert to fraction form
   144,606/216,141 = 216,141/x
3. Step 3: Cross multiply
   144,606x = 216,141 × 216,141
4. Step 4: Simplify right side
   144,606x = 46,716,931,881
5. Step 5: Solve for x
   x = 46,716,931,881/144,606
6. Step 6: Final answer
   x = 323,063.58