Finding the Third Proportional to 89,140.50 and 195,777

Step by Step Solution

1. Step 1: Write the proportion equation
   89,140.50 : 195,777 = 195,777 : x
2. Step 2: Convert to fraction form
   89,140.50/195,777 = 195,777/x
3. Step 3: Cross multiply
   89,140.50x = 195,777 × 195,777
4. Step 4: Simplify right side
   89,140.50x = 38,328,633,729
5. Step 5: Solve for x
   x = 38,328,633,729/89,140.50
6. Step 6: Final answer
   x = 429,980.02