Finding the Third Proportional to 19,787.20 and 41,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,787.20 : 41,624.72 = 41,624.72 : x
2. Step 2: Convert to fraction form
   19,787.20/41,624.72 = 41,624.72/x
3. Step 3: Cross multiply
   19,787.20x = 41,624.72 × 41,624.72
4. Step 4: Simplify right side
   19,787.20x = 1,732,617,211.02
5. Step 5: Solve for x
   x = 1,732,617,211.02/19,787.20
6. Step 6: Final answer
   x = 87,562.51