Finding the Third Proportional to 15,400.13 and 33,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   15,400.13 : 33,100.78 = 33,100.78 : x
2. Step 2: Convert to fraction form
   15,400.13/33,100.78 = 33,100.78/x
3. Step 3: Cross multiply
   15,400.13x = 33,100.78 × 33,100.78
4. Step 4: Simplify right side
   15,400.13x = 1,095,661,719.36
5. Step 5: Solve for x
   x = 1,095,661,719.36/15,400.13
6. Step 6: Final answer
   x = 71,146.29