Finding the Third Proportional to 17,431.31 and 35,894.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,431.31 : 35,894.06 = 35,894.06 : x
2. Step 2: Convert to fraction form
   17,431.31/35,894.06 = 35,894.06/x
3. Step 3: Cross multiply
   17,431.31x = 35,894.06 × 35,894.06
4. Step 4: Simplify right side
   17,431.31x = 1,288,383,722.75
5. Step 5: Solve for x
   x = 1,288,383,722.75/17,431.31
6. Step 6: Final answer
   x = 73,912.03