Finding the Third Proportional to 65,218.50 and 141,777

Step by Step Solution

1. Step 1: Write the proportion equation
   65,218.50 : 141,777 = 141,777 : x
2. Step 2: Convert to fraction form
   65,218.50/141,777 = 141,777/x
3. Step 3: Cross multiply
   65,218.50x = 141,777 × 141,777
4. Step 4: Simplify right side
   65,218.50x = 20,100,717,729
5. Step 5: Solve for x
   x = 20,100,717,729/65,218.50
6. Step 6: Final answer
   x = 308,205.77