Finding the Third Proportional to 67,185.70 and 101,638.55

Step by Step Solution

1. Step 1: Write the proportion equation
   67,185.70 : 101,638.55 = 101,638.55 : x
2. Step 2: Convert to fraction form
   67,185.70/101,638.55 = 101,638.55/x
3. Step 3: Cross multiply
   67,185.70x = 101,638.55 × 101,638.55
4. Step 4: Simplify right side
   67,185.70x = 10,330,394,210.86
5. Step 5: Solve for x
   x = 10,330,394,210.86/67,185.70
6. Step 6: Final answer
   x = 153,758.82