Finding the Third Proportional to 99,223 and 144,454

Step by Step Solution

1. Step 1: Write the proportion equation
   99,223 : 144,454 = 144,454 : x
2. Step 2: Convert to fraction form
   99,223/144,454 = 144,454/x
3. Step 3: Cross multiply
   99,223x = 144,454 × 144,454
4. Step 4: Simplify right side
   99,223x = 20,866,958,116
5. Step 5: Solve for x
   x = 20,866,958,116/99,223
6. Step 6: Final answer
   x = 210,303.64