Finding the Third Proportional to 89,889.75 and 195,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,889.75 : 195,628.50 = 195,628.50 : x
2. Step 2: Convert to fraction form
   89,889.75/195,628.50 = 195,628.50/x
3. Step 3: Cross multiply
   89,889.75x = 195,628.50 × 195,628.50
4. Step 4: Simplify right side
   89,889.75x = 38,270,510,012.25
5. Step 5: Solve for x
   x = 38,270,510,012.25/89,889.75
6. Step 6: Final answer
   x = 425,749.43