Finding the Third Proportional to 56,021 and 123,084

Step by Step Solution

1. Step 1: Write the proportion equation
   56,021 : 123,084 = 123,084 : x
2. Step 2: Convert to fraction form
   56,021/123,084 = 123,084/x
3. Step 3: Cross multiply
   56,021x = 123,084 × 123,084
4. Step 4: Simplify right side
   56,021x = 15,149,671,056
5. Step 5: Solve for x
   x = 15,149,671,056/56,021
6. Step 6: Final answer
   x = 270,428.43