Finding the Third Proportional to 4,870.13 and 10,518.61

Step by Step Solution

1. Step 1: Write the proportion equation
   4,870.13 : 10,518.61 = 10,518.61 : x
2. Step 2: Convert to fraction form
   4,870.13/10,518.61 = 10,518.61/x
3. Step 3: Cross multiply
   4,870.13x = 10,518.61 × 10,518.61
4. Step 4: Simplify right side
   4,870.13x = 110,641,143.18
5. Step 5: Solve for x
   x = 110,641,143.18/4,870.13
6. Step 6: Final answer
   x = 22,718.34