Finding the Third Proportional to 70,442 and 144,123

Step by Step Solution

1. Step 1: Write the proportion equation
   70,442 : 144,123 = 144,123 : x
2. Step 2: Convert to fraction form
   70,442/144,123 = 144,123/x
3. Step 3: Cross multiply
   70,442x = 144,123 × 144,123
4. Step 4: Simplify right side
   70,442x = 20,771,439,129
5. Step 5: Solve for x
   x = 20,771,439,129/70,442
6. Step 6: Final answer
   x = 294,872.93