Finding the Third Proportional to 49,146.75 and 72,679.78

Step by Step Solution

1. Step 1: Write the proportion equation
   49,146.75 : 72,679.78 = 72,679.78 : x
2. Step 2: Convert to fraction form
   49,146.75/72,679.78 = 72,679.78/x
3. Step 3: Cross multiply
   49,146.75x = 72,679.78 × 72,679.78
4. Step 4: Simplify right side
   49,146.75x = 5,282,350,602.55
5. Step 5: Solve for x
   x = 5,282,350,602.55/49,146.75
6. Step 6: Final answer
   x = 107,481.18