Finding the Third Proportional to 99,216 and 144,444

Step by Step Solution

1. Step 1: Write the proportion equation
   99,216 : 144,444 = 144,444 : x
2. Step 2: Convert to fraction form
   99,216/144,444 = 144,444/x
3. Step 3: Cross multiply
   99,216x = 144,444 × 144,444
4. Step 4: Simplify right side
   99,216x = 20,864,069,136
5. Step 5: Solve for x
   x = 20,864,069,136/99,216
6. Step 6: Final answer
   x = 210,289.36