Finding the Third Proportional to 28,282 and 42,487

Step by Step Solution

1. Step 1: Write the proportion equation
   28,282 : 42,487 = 42,487 : x
2. Step 2: Convert to fraction form
   28,282/42,487 = 42,487/x
3. Step 3: Cross multiply
   28,282x = 42,487 × 42,487
4. Step 4: Simplify right side
   28,282x = 1,805,145,169
5. Step 5: Solve for x
   x = 1,805,145,169/28,282
6. Step 6: Final answer
   x = 63,826.64