Finding the Third Proportional to 17,220 and 35,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,220 : 35,170.50 = 35,170.50 : x
2. Step 2: Convert to fraction form
   17,220/35,170.50 = 35,170.50/x
3. Step 3: Cross multiply
   17,220x = 35,170.50 × 35,170.50
4. Step 4: Simplify right side
   17,220x = 1,236,964,070.25
5. Step 5: Solve for x
   x = 1,236,964,070.25/17,220
6. Step 6: Final answer
   x = 71,832.99