Finding the Third Proportional to 20,139 and 43,738

Step by Step Solution

1. Step 1: Write the proportion equation
   20,139 : 43,738 = 43,738 : x
2. Step 2: Convert to fraction form
   20,139/43,738 = 43,738/x
3. Step 3: Cross multiply
   20,139x = 43,738 × 43,738
4. Step 4: Simplify right side
   20,139x = 1,913,012,644
5. Step 5: Solve for x
   x = 1,913,012,644/20,139
6. Step 6: Final answer
   x = 94,990.45