Finding the Third Proportional to 30,764 and 64,768

Step by Step Solution

1. Step 1: Write the proportion equation
   30,764 : 64,768 = 64,768 : x
2. Step 2: Convert to fraction form
   30,764/64,768 = 64,768/x
3. Step 3: Cross multiply
   30,764x = 64,768 × 64,768
4. Step 4: Simplify right side
   30,764x = 4,194,893,824
5. Step 5: Solve for x
   x = 4,194,893,824/30,764
6. Step 6: Final answer
   x = 136,357.23