Finding the Third Proportional to 89,641.50 and 131,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,641.50 : 131,870.25 = 131,870.25 : x
2. Step 2: Convert to fraction form
   89,641.50/131,870.25 = 131,870.25/x
3. Step 3: Cross multiply
   89,641.50x = 131,870.25 × 131,870.25
4. Step 4: Simplify right side
   89,641.50x = 17,389,762,835.06
5. Step 5: Solve for x
   x = 17,389,762,835.06/89,641.50
6. Step 6: Final answer
   x = 193,992.32