Finding the Third Proportional to 40,719 and 64,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,719 : 64,630.50 = 64,630.50 : x
2. Step 2: Convert to fraction form
   40,719/64,630.50 = 64,630.50/x
3. Step 3: Cross multiply
   40,719x = 64,630.50 × 64,630.50
4. Step 4: Simplify right side
   40,719x = 4,177,101,530.25
5. Step 5: Solve for x
   x = 4,177,101,530.25/40,719
6. Step 6: Final answer
   x = 102,583.60