Finding the Third Proportional to 61,216 and 131,768

Step by Step Solution

1. Step 1: Write the proportion equation
   61,216 : 131,768 = 131,768 : x
2. Step 2: Convert to fraction form
   61,216/131,768 = 131,768/x
3. Step 3: Cross multiply
   61,216x = 131,768 × 131,768
4. Step 4: Simplify right side
   61,216x = 17,362,805,824
5. Step 5: Solve for x
   x = 17,362,805,824/61,216
6. Step 6: Final answer
   x = 283,631.83