Finding the Third Proportional to 21,983 and 42,873

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983 : 42,873 = 42,873 : x
2. Step 2: Convert to fraction form
   21,983/42,873 = 42,873/x
3. Step 3: Cross multiply
   21,983x = 42,873 × 42,873
4. Step 4: Simplify right side
   21,983x = 1,838,094,129
5. Step 5: Solve for x
   x = 1,838,094,129/21,983
6. Step 6: Final answer
   x = 83,614.34