Finding the Third Proportional to 40,708 and 64,340

Step by Step Solution

1. Step 1: Write the proportion equation
   40,708 : 64,340 = 64,340 : x
2. Step 2: Convert to fraction form
   40,708/64,340 = 64,340/x
3. Step 3: Cross multiply
   40,708x = 64,340 × 64,340
4. Step 4: Simplify right side
   40,708x = 4,139,635,600
5. Step 5: Solve for x
   x = 4,139,635,600/40,708
6. Step 6: Final answer
   x = 101,690.96