Finding the Third Proportional to 71,424.50 and 148,760

Step by Step Solution

1. Step 1: Write the proportion equation
   71,424.50 : 148,760 = 148,760 : x
2. Step 2: Convert to fraction form
   71,424.50/148,760 = 148,760/x
3. Step 3: Cross multiply
   71,424.50x = 148,760 × 148,760
4. Step 4: Simplify right side
   71,424.50x = 22,129,537,600
5. Step 5: Solve for x
   x = 22,129,537,600/71,424.50
6. Step 6: Final answer
   x = 309,831.19