Finding the Third Proportional to 55,298 and 72,579

Step by Step Solution

1. Step 1: Write the proportion equation
   55,298 : 72,579 = 72,579 : x
2. Step 2: Convert to fraction form
   55,298/72,579 = 72,579/x
3. Step 3: Cross multiply
   55,298x = 72,579 × 72,579
4. Step 4: Simplify right side
   55,298x = 5,267,711,241
5. Step 5: Solve for x
   x = 5,267,711,241/55,298
6. Step 6: Final answer
   x = 95,260.43