Finding the Third Proportional to 49,431.38 and 76,604.63

Step by Step Solution

1. Step 1: Write the proportion equation
   49,431.38 : 76,604.63 = 76,604.63 : x
2. Step 2: Convert to fraction form
   49,431.38/76,604.63 = 76,604.63/x
3. Step 3: Cross multiply
   49,431.38x = 76,604.63 × 76,604.63
4. Step 4: Simplify right side
   49,431.38x = 5,868,268,571.39
5. Step 5: Solve for x
   x = 5,868,268,571.39/49,431.38
6. Step 6: Final answer
   x = 118,715.46