Finding the Third Proportional to 19,770 and 37,710

Step by Step Solution

1. Step 1: Write the proportion equation
   19,770 : 37,710 = 37,710 : x
2. Step 2: Convert to fraction form
   19,770/37,710 = 37,710/x
3. Step 3: Cross multiply
   19,770x = 37,710 × 37,710
4. Step 4: Simplify right side
   19,770x = 1,422,044,100
5. Step 5: Solve for x
   x = 1,422,044,100/19,770
6. Step 6: Final answer
   x = 71,929.39