Finding the Third Proportional to 19,823.44 and 28,990.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,823.44 : 28,990.88 = 28,990.88 : x
2. Step 2: Convert to fraction form
   19,823.44/28,990.88 = 28,990.88/x
3. Step 3: Cross multiply
   19,823.44x = 28,990.88 × 28,990.88
4. Step 4: Simplify right side
   19,823.44x = 840,470,833.27
5. Step 5: Solve for x
   x = 840,470,833.27/19,823.44
6. Step 6: Final answer
   x = 42,397.84