Finding the Third Proportional to 67,143 and 102,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,143 : 102,658.50 = 102,658.50 : x
2. Step 2: Convert to fraction form
   67,143/102,658.50 = 102,658.50/x
3. Step 3: Cross multiply
   67,143x = 102,658.50 × 102,658.50
4. Step 4: Simplify right side
   67,143x = 10,538,767,622.25
5. Step 5: Solve for x
   x = 10,538,767,622.25/67,143
6. Step 6: Final answer
   x = 156,960.03