Finding the Third Proportional to 18,976.50 and 30,156.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,976.50 : 30,156.75 = 30,156.75 : x
2. Step 2: Convert to fraction form
   18,976.50/30,156.75 = 30,156.75/x
3. Step 3: Cross multiply
   18,976.50x = 30,156.75 × 30,156.75
4. Step 4: Simplify right side
   18,976.50x = 909,429,570.56
5. Step 5: Solve for x
   x = 909,429,570.56/18,976.50
6. Step 6: Final answer
   x = 47,923.99