Finding the Third Proportional to 7,020 and 11,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020 : 11,110.50 = 11,110.50 : x
2. Step 2: Convert to fraction form
   7,020/11,110.50 = 11,110.50/x
3. Step 3: Cross multiply
   7,020x = 11,110.50 × 11,110.50
4. Step 4: Simplify right side
   7,020x = 123,443,210.25
5. Step 5: Solve for x
   x = 123,443,210.25/7,020
6. Step 6: Final answer
   x = 17,584.50