Finding the Third Proportional to 40,629 and 64,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,629 : 64,879.50 = 64,879.50 : x
2. Step 2: Convert to fraction form
   40,629/64,879.50 = 64,879.50/x
3. Step 3: Cross multiply
   40,629x = 64,879.50 × 64,879.50
4. Step 4: Simplify right side
   40,629x = 4,209,349,520.25
5. Step 5: Solve for x
   x = 4,209,349,520.25/40,629
6. Step 6: Final answer
   x = 103,604.56