Finding the Third Proportional to 19,740 and 30,558

Step by Step Solution

1. Step 1: Write the proportion equation
   19,740 : 30,558 = 30,558 : x
2. Step 2: Convert to fraction form
   19,740/30,558 = 30,558/x
3. Step 3: Cross multiply
   19,740x = 30,558 × 30,558
4. Step 4: Simplify right side
   19,740x = 933,791,364
5. Step 5: Solve for x
   x = 933,791,364/19,740
6. Step 6: Final answer
   x = 47,304.53