Finding the Third Proportional to 40,770 and 64,860.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,770 : 64,860.75 = 64,860.75 : x
2. Step 2: Convert to fraction form
   40,770/64,860.75 = 64,860.75/x
3. Step 3: Cross multiply
   40,770x = 64,860.75 × 64,860.75
4. Step 4: Simplify right side
   40,770x = 4,206,916,890.56
5. Step 5: Solve for x
   x = 4,206,916,890.56/40,770
6. Step 6: Final answer
   x = 103,186.58