Finding the Third Proportional to 19,215 and 41,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,215 : 41,521.50 = 41,521.50 : x
2. Step 2: Convert to fraction form
   19,215/41,521.50 = 41,521.50/x
3. Step 3: Cross multiply
   19,215x = 41,521.50 × 41,521.50
4. Step 4: Simplify right side
   19,215x = 1,724,034,962.25
5. Step 5: Solve for x
   x = 1,724,034,962.25/19,215
6. Step 6: Final answer
   x = 89,723.39