Finding the Third Proportional to 56,320 and 123,483

Step by Step Solution

1. Step 1: Write the proportion equation
   56,320 : 123,483 = 123,483 : x
2. Step 2: Convert to fraction form
   56,320/123,483 = 123,483/x
3. Step 3: Cross multiply
   56,320x = 123,483 × 123,483
4. Step 4: Simplify right side
   56,320x = 15,248,051,289
5. Step 5: Solve for x
   x = 15,248,051,289/56,320
6. Step 6: Final answer
   x = 270,739.55