Finding the Third Proportional to 20,740 and 43,506

Step by Step Solution

1. Step 1: Write the proportion equation
   20,740 : 43,506 = 43,506 : x
2. Step 2: Convert to fraction form
   20,740/43,506 = 43,506/x
3. Step 3: Cross multiply
   20,740x = 43,506 × 43,506
4. Step 4: Simplify right side
   20,740x = 1,892,772,036
5. Step 5: Solve for x
   x = 1,892,772,036/20,740
6. Step 6: Final answer
   x = 91,261.91