Finding the Third Proportional to 30,640.78 and 47,635.59

Step by Step Solution

1. Step 1: Write the proportion equation
   30,640.78 : 47,635.59 = 47,635.59 : x
2. Step 2: Convert to fraction form
   30,640.78/47,635.59 = 47,635.59/x
3. Step 3: Cross multiply
   30,640.78x = 47,635.59 × 47,635.59
4. Step 4: Simplify right side
   30,640.78x = 2,269,149,791.92
5. Step 5: Solve for x
   x = 2,269,149,791.92/30,640.78
6. Step 6: Final answer
   x = 74,056.53