Finding the Third Proportional to 56,488 and 131,336

Step by Step Solution

1. Step 1: Write the proportion equation
   56,488 : 131,336 = 131,336 : x
2. Step 2: Convert to fraction form
   56,488/131,336 = 131,336/x
3. Step 3: Cross multiply
   56,488x = 131,336 × 131,336
4. Step 4: Simplify right side
   56,488x = 17,249,144,896
5. Step 5: Solve for x
   x = 17,249,144,896/56,488
6. Step 6: Final answer
   x = 305,359.46