Finding the Third Proportional to 70,938 and 145,530

Step by Step Solution

1. Step 1: Write the proportion equation
   70,938 : 145,530 = 145,530 : x
2. Step 2: Convert to fraction form
   70,938/145,530 = 145,530/x
3. Step 3: Cross multiply
   70,938x = 145,530 × 145,530
4. Step 4: Simplify right side
   70,938x = 21,178,980,900
5. Step 5: Solve for x
   x = 21,178,980,900/70,938
6. Step 6: Final answer
   x = 298,556.22