Finding the Third Proportional to 4,287.56 and 9,116.06

Step by Step Solution

1. Step 1: Write the proportion equation
   4,287.56 : 9,116.06 = 9,116.06 : x
2. Step 2: Convert to fraction form
   4,287.56/9,116.06 = 9,116.06/x
3. Step 3: Cross multiply
   4,287.56x = 9,116.06 × 9,116.06
4. Step 4: Simplify right side
   4,287.56x = 83,102,595.50
5. Step 5: Solve for x
   x = 83,102,595.50/4,287.56
6. Step 6: Final answer
   x = 19,382.25