Finding the Third Proportional to 15,400.13 and 31,969.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,400.13 : 31,969.69 = 31,969.69 : x
2. Step 2: Convert to fraction form
   15,400.13/31,969.69 = 31,969.69/x
3. Step 3: Cross multiply
   15,400.13x = 31,969.69 × 31,969.69
4. Step 4: Simplify right side
   15,400.13x = 1,022,060,918.85
5. Step 5: Solve for x
   x = 1,022,060,918.85/15,400.13
6. Step 6: Final answer
   x = 66,367.05