Finding the Third Proportional to 89,640.42 and 195,580.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89,640.42 : 195,580.83 = 195,580.83 : x
2. Step 2: Convert to fraction form
   89,640.42/195,580.83 = 195,580.83/x
3. Step 3: Cross multiply
   89,640.42x = 195,580.83 × 195,580.83
4. Step 4: Simplify right side
   89,640.42x = 38,251,860,330.06
5. Step 5: Solve for x
   x = 38,251,860,330.06/89,640.42
6. Step 6: Final answer
   x = 426,725.57