Finding the Third Proportional to 20,254 and 42,709

Step by Step Solution

1. Step 1: Write the proportion equation
   20,254 : 42,709 = 42,709 : x
2. Step 2: Convert to fraction form
   20,254/42,709 = 42,709/x
3. Step 3: Cross multiply
   20,254x = 42,709 × 42,709
4. Step 4: Simplify right side
   20,254x = 1,824,058,681
5. Step 5: Solve for x
   x = 1,824,058,681/20,254
6. Step 6: Final answer
   x = 90,059.18