Finding the Third Proportional to 56,116 and 123,348

Step by Step Solution

1. Step 1: Write the proportion equation
   56,116 : 123,348 = 123,348 : x
2. Step 2: Convert to fraction form
   56,116/123,348 = 123,348/x
3. Step 3: Cross multiply
   56,116x = 123,348 × 123,348
4. Step 4: Simplify right side
   56,116x = 15,214,729,104
5. Step 5: Solve for x
   x = 15,214,729,104/56,116
6. Step 6: Final answer
   x = 271,129.96