Finding the Third Proportional to 70,409.25 and 144,099

Step by Step Solution

1. Step 1: Write the proportion equation
   70,409.25 : 144,099 = 144,099 : x
2. Step 2: Convert to fraction form
   70,409.25/144,099 = 144,099/x
3. Step 3: Cross multiply
   70,409.25x = 144,099 × 144,099
4. Step 4: Simplify right side
   70,409.25x = 20,764,521,801
5. Step 5: Solve for x
   x = 20,764,521,801/70,409.25
6. Step 6: Final answer
   x = 294,911.84