Finding the Third Proportional to 19,216 and 28,545

Step by Step Solution

1. Step 1: Write the proportion equation
   19,216 : 28,545 = 28,545 : x
2. Step 2: Convert to fraction form
   19,216/28,545 = 28,545/x
3. Step 3: Cross multiply
   19,216x = 28,545 × 28,545
4. Step 4: Simplify right side
   19,216x = 814,817,025
5. Step 5: Solve for x
   x = 814,817,025/19,216
6. Step 6: Final answer
   x = 42,403.05