Finding the Third Proportional to 20,386.69 and 47,288.81

Step by Step Solution

1. Step 1: Write the proportion equation
   20,386.69 : 47,288.81 = 47,288.81 : x
2. Step 2: Convert to fraction form
   20,386.69/47,288.81 = 47,288.81/x
3. Step 3: Cross multiply
   20,386.69x = 47,288.81 × 47,288.81
4. Step 4: Simplify right side
   20,386.69x = 2,236,231,787.66
5. Step 5: Solve for x
   x = 2,236,231,787.66/20,386.69
6. Step 6: Final answer
   x = 109,690.79