Finding the Third Proportional to 49,408 and 72,248

Step by Step Solution

1. Step 1: Write the proportion equation
   49,408 : 72,248 = 72,248 : x
2. Step 2: Convert to fraction form
   49,408/72,248 = 72,248/x
3. Step 3: Cross multiply
   49,408x = 72,248 × 72,248
4. Step 4: Simplify right side
   49,408x = 5,219,773,504
5. Step 5: Solve for x
   x = 5,219,773,504/49,408
6. Step 6: Final answer
   x = 105,646.32