Finding the Third Proportional to 86,759 and 188,908

Step by Step Solution

1. Step 1: Write the proportion equation
   86,759 : 188,908 = 188,908 : x
2. Step 2: Convert to fraction form
   86,759/188,908 = 188,908/x
3. Step 3: Cross multiply
   86,759x = 188,908 × 188,908
4. Step 4: Simplify right side
   86,759x = 35,686,232,464
5. Step 5: Solve for x
   x = 35,686,232,464/86,759
6. Step 6: Final answer
   x = 411,326.00