Finding the Third Proportional to 56,710 and 123,782

Step by Step Solution

1. Step 1: Write the proportion equation
   56,710 : 123,782 = 123,782 : x
2. Step 2: Convert to fraction form
   56,710/123,782 = 123,782/x
3. Step 3: Cross multiply
   56,710x = 123,782 × 123,782
4. Step 4: Simplify right side
   56,710x = 15,321,983,524
5. Step 5: Solve for x
   x = 15,321,983,524/56,710
6. Step 6: Final answer
   x = 270,181.34