Finding the Third Proportional to 19,440 and 31,179.94

Step by Step Solution

1. Step 1: Write the proportion equation
   19,440 : 31,179.94 = 31,179.94 : x
2. Step 2: Convert to fraction form
   19,440/31,179.94 = 31,179.94/x
3. Step 3: Cross multiply
   19,440x = 31,179.94 × 31,179.94
4. Step 4: Simplify right side
   19,440x = 972,188,502.50
5. Step 5: Solve for x
   x = 972,188,502.50/19,440
6. Step 6: Final answer
   x = 50,009.70