Finding the Third Proportional to 30,722 and 45,871

Step by Step Solution

1. Step 1: Write the proportion equation
   30,722 : 45,871 = 45,871 : x
2. Step 2: Convert to fraction form
   30,722/45,871 = 45,871/x
3. Step 3: Cross multiply
   30,722x = 45,871 × 45,871
4. Step 4: Simplify right side
   30,722x = 2,104,148,641
5. Step 5: Solve for x
   x = 2,104,148,641/30,722
6. Step 6: Final answer
   x = 68,489.96