Finding the Third Proportional to 20,107.50 and 42,483

Step by Step Solution

1. Step 1: Write the proportion equation
   20,107.50 : 42,483 = 42,483 : x
2. Step 2: Convert to fraction form
   20,107.50/42,483 = 42,483/x
3. Step 3: Cross multiply
   20,107.50x = 42,483 × 42,483
4. Step 4: Simplify right side
   20,107.50x = 1,804,805,289
5. Step 5: Solve for x
   x = 1,804,805,289/20,107.50
6. Step 6: Final answer
   x = 89,757.82