Finding the Third Proportional to 12,477.50 and 19,843

Step by Step Solution

1. Step 1: Write the proportion equation
   12,477.50 : 19,843 = 19,843 : x
2. Step 2: Convert to fraction form
   12,477.50/19,843 = 19,843/x
3. Step 3: Cross multiply
   12,477.50x = 19,843 × 19,843
4. Step 4: Simplify right side
   12,477.50x = 393,744,649
5. Step 5: Solve for x
   x = 393,744,649/12,477.50
6. Step 6: Final answer
   x = 31,556.37