Finding the Third Proportional to 67,520 and 148,000

Step by Step Solution

1. Step 1: Write the proportion equation
   67,520 : 148,000 = 148,000 : x
2. Step 2: Convert to fraction form
   67,520/148,000 = 148,000/x
3. Step 3: Cross multiply
   67,520x = 148,000 × 148,000
4. Step 4: Simplify right side
   67,520x = 21,904,000,000
5. Step 5: Solve for x
   x = 21,904,000,000/67,520
6. Step 6: Final answer
   x = 324,407.58