Finding the Third Proportional to 11,219.77 and 23,939.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,219.77 : 23,939.30 = 23,939.30 : x
2. Step 2: Convert to fraction form
   11,219.77/23,939.30 = 23,939.30/x
3. Step 3: Cross multiply
   11,219.77x = 23,939.30 × 23,939.30
4. Step 4: Simplify right side
   11,219.77x = 573,089,934.87
5. Step 5: Solve for x
   x = 573,089,934.87/11,219.77
6. Step 6: Final answer
   x = 51,078.60