Finding the Third Proportional to 40,986 and 64,820.25

Step by Step Solution

1. Step 1: Write the proportion equation
   40,986 : 64,820.25 = 64,820.25 : x
2. Step 2: Convert to fraction form
   40,986/64,820.25 = 64,820.25/x
3. Step 3: Cross multiply
   40,986x = 64,820.25 × 64,820.25
4. Step 4: Simplify right side
   40,986x = 4,201,664,810.06
5. Step 5: Solve for x
   x = 4,201,664,810.06/40,986
6. Step 6: Final answer
   x = 102,514.63