Finding the Third Proportional to 19,939.50 and 27,880.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,939.50 : 27,880.88 = 27,880.88 : x
2. Step 2: Convert to fraction form
   19,939.50/27,880.88 = 27,880.88/x
3. Step 3: Cross multiply
   19,939.50x = 27,880.88 × 27,880.88
4. Step 4: Simplify right side
   19,939.50x = 777,343,190.77
5. Step 5: Solve for x
   x = 777,343,190.77/19,939.50
6. Step 6: Final answer
   x = 38,985.09