Finding the Third Proportional to 99,228 and 144,462

Step by Step Solution

1. Step 1: Write the proportion equation
   99,228 : 144,462 = 144,462 : x
2. Step 2: Convert to fraction form
   99,228/144,462 = 144,462/x
3. Step 3: Cross multiply
   99,228x = 144,462 × 144,462
4. Step 4: Simplify right side
   99,228x = 20,869,269,444
5. Step 5: Solve for x
   x = 20,869,269,444/99,228
6. Step 6: Final answer
   x = 210,316.34