Finding the Third Proportional to 30,307 and 64,826

Step by Step Solution

1. Step 1: Write the proportion equation
   30,307 : 64,826 = 64,826 : x
2. Step 2: Convert to fraction form
   30,307/64,826 = 64,826/x
3. Step 3: Cross multiply
   30,307x = 64,826 × 64,826
4. Step 4: Simplify right side
   30,307x = 4,202,410,276
5. Step 5: Solve for x
   x = 4,202,410,276/30,307
6. Step 6: Final answer
   x = 138,661.37