Finding the Third Proportional to 30,336 and 64,888

Step by Step Solution

1. Step 1: Write the proportion equation
   30,336 : 64,888 = 64,888 : x
2. Step 2: Convert to fraction form
   30,336/64,888 = 64,888/x
3. Step 3: Cross multiply
   30,336x = 64,888 × 64,888
4. Step 4: Simplify right side
   30,336x = 4,210,452,544
5. Step 5: Solve for x
   x = 4,210,452,544/30,336
6. Step 6: Final answer
   x = 138,793.93