Finding the Third Proportional to 7,870.50 and 17,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.50 : 17,170.50 = 17,170.50 : x
2. Step 2: Convert to fraction form
   7,870.50/17,170.50 = 17,170.50/x
3. Step 3: Cross multiply
   7,870.50x = 17,170.50 × 17,170.50
4. Step 4: Simplify right side
   7,870.50x = 294,826,070.25
5. Step 5: Solve for x
   x = 294,826,070.25/7,870.50
6. Step 6: Final answer
   x = 37,459.64