Finding the Third Proportional to 67,186.50 and 101,640

Step by Step Solution

1. Step 1: Write the proportion equation
   67,186.50 : 101,640 = 101,640 : x
2. Step 2: Convert to fraction form
   67,186.50/101,640 = 101,640/x
3. Step 3: Cross multiply
   67,186.50x = 101,640 × 101,640
4. Step 4: Simplify right side
   67,186.50x = 10,330,689,600
5. Step 5: Solve for x
   x = 10,330,689,600/67,186.50
6. Step 6: Final answer
   x = 153,761.39