Finding the Third Proportional to 17,431.50 and 35,790

Step by Step Solution

1. Step 1: Write the proportion equation
   17,431.50 : 35,790 = 35,790 : x
2. Step 2: Convert to fraction form
   17,431.50/35,790 = 35,790/x
3. Step 3: Cross multiply
   17,431.50x = 35,790 × 35,790
4. Step 4: Simplify right side
   17,431.50x = 1,280,924,100
5. Step 5: Solve for x
   x = 1,280,924,100/17,431.50
6. Step 6: Final answer
   x = 73,483.30