Finding the Third Proportional to 49,404 and 72,243

Step by Step Solution

1. Step 1: Write the proportion equation
   49,404 : 72,243 = 72,243 : x
2. Step 2: Convert to fraction form
   49,404/72,243 = 72,243/x
3. Step 3: Cross multiply
   49,404x = 72,243 × 72,243
4. Step 4: Simplify right side
   49,404x = 5,219,051,049
5. Step 5: Solve for x
   x = 5,219,051,049/49,404
6. Step 6: Final answer
   x = 105,640.25