Finding the Third Proportional to 57,472 and 83,979

Step by Step Solution

1. Step 1: Write the proportion equation
   57,472 : 83,979 = 83,979 : x
2. Step 2: Convert to fraction form
   57,472/83,979 = 83,979/x
3. Step 3: Cross multiply
   57,472x = 83,979 × 83,979
4. Step 4: Simplify right side
   57,472x = 7,052,472,441
5. Step 5: Solve for x
   x = 7,052,472,441/57,472
6. Step 6: Final answer
   x = 122,711.45