Finding the Third Proportional to 20,203 and 42,997

Step by Step Solution

1. Step 1: Write the proportion equation
   20,203 : 42,997 = 42,997 : x
2. Step 2: Convert to fraction form
   20,203/42,997 = 42,997/x
3. Step 3: Cross multiply
   20,203x = 42,997 × 42,997
4. Step 4: Simplify right side
   20,203x = 1,848,742,009
5. Step 5: Solve for x
   x = 1,848,742,009/20,203
6. Step 6: Final answer
   x = 91,508.29