Finding the Third Proportional to 2,120.25 and 4,620.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.25 : 4,620.38 = 4,620.38 : x
2. Step 2: Convert to fraction form
   2,120.25/4,620.38 = 4,620.38/x
3. Step 3: Cross multiply
   2,120.25x = 4,620.38 × 4,620.38
4. Step 4: Simplify right side
   2,120.25x = 21,347,865.14
5. Step 5: Solve for x
   x = 21,347,865.14/2,120.25
6. Step 6: Final answer
   x = 10,068.56