Finding the Third Proportional to 57,111 and 83,718

Step by Step Solution

1. Step 1: Write the proportion equation
   57,111 : 83,718 = 83,718 : x
2. Step 2: Convert to fraction form
   57,111/83,718 = 83,718/x
3. Step 3: Cross multiply
   57,111x = 83,718 × 83,718
4. Step 4: Simplify right side
   57,111x = 7,008,703,524
5. Step 5: Solve for x
   x = 7,008,703,524/57,111
6. Step 6: Final answer
   x = 122,720.73