Finding the Third Proportional to 67,138.50 and 148,248

Step by Step Solution

1. Step 1: Write the proportion equation
   67,138.50 : 148,248 = 148,248 : x
2. Step 2: Convert to fraction form
   67,138.50/148,248 = 148,248/x
3. Step 3: Cross multiply
   67,138.50x = 148,248 × 148,248
4. Step 4: Simplify right side
   67,138.50x = 21,977,469,504
5. Step 5: Solve for x
   x = 21,977,469,504/67,138.50
6. Step 6: Final answer
   x = 327,345.26