Finding the Third Proportional to 67,790.25 and 140,956.88

Step by Step Solution

1. Step 1: Write the proportion equation
   67,790.25 : 140,956.88 = 140,956.88 : x
2. Step 2: Convert to fraction form
   67,790.25/140,956.88 = 140,956.88/x
3. Step 3: Cross multiply
   67,790.25x = 140,956.88 × 140,956.88
4. Step 4: Simplify right side
   67,790.25x = 19,868,840,609.77
5. Step 5: Solve for x
   x = 19,868,840,609.77/67,790.25
6. Step 6: Final answer
   x = 293,092.89