Finding the Third Proportional to 54,499 and 73,972

Step by Step Solution

1. Step 1: Write the proportion equation
   54,499 : 73,972 = 73,972 : x
2. Step 2: Convert to fraction form
   54,499/73,972 = 73,972/x
3. Step 3: Cross multiply
   54,499x = 73,972 × 73,972
4. Step 4: Simplify right side
   54,499x = 5,471,856,784
5. Step 5: Solve for x
   x = 5,471,856,784/54,499
6. Step 6: Final answer
   x = 100,402.88