Finding the Third Proportional to 9,959.84 and 13,931.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,959.84 : 13,931.37 = 13,931.37 : x
2. Step 2: Convert to fraction form
   9,959.84/13,931.37 = 13,931.37/x
3. Step 3: Cross multiply
   9,959.84x = 13,931.37 × 13,931.37
4. Step 4: Simplify right side
   9,959.84x = 194,082,991.71
5. Step 5: Solve for x
   x = 194,082,991.71/9,959.84
6. Step 6: Final answer
   x = 19,486.57