Finding the Third Proportional to 64,808 and 99,976

Step by Step Solution

1. Step 1: Write the proportion equation
   64,808 : 99,976 = 99,976 : x
2. Step 2: Convert to fraction form
   64,808/99,976 = 99,976/x
3. Step 3: Cross multiply
   64,808x = 99,976 × 99,976
4. Step 4: Simplify right side
   64,808x = 9,995,200,576
5. Step 5: Solve for x
   x = 9,995,200,576/64,808
6. Step 6: Final answer
   x = 154,227.88