Finding the Third Proportional to 18,277.88 and 37,991.81

Step by Step Solution

1. Step 1: Write the proportion equation
   18,277.88 : 37,991.81 = 37,991.81 : x
2. Step 2: Convert to fraction form
   18,277.88/37,991.81 = 37,991.81/x
3. Step 3: Cross multiply
   18,277.88x = 37,991.81 × 37,991.81
4. Step 4: Simplify right side
   18,277.88x = 1,443,377,817.04
5. Step 5: Solve for x
   x = 1,443,377,817.04/18,277.88
6. Step 6: Final answer
   x = 78,968.58