Finding the Third Proportional to 1,622.10 and 2,486.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.10 : 2,486.72 = 2,486.72 : x
2. Step 2: Convert to fraction form
   1,622.10/2,486.72 = 2,486.72/x
3. Step 3: Cross multiply
   1,622.10x = 2,486.72 × 2,486.72
4. Step 4: Simplify right side
   1,622.10x = 6,183,755.57
5. Step 5: Solve for x
   x = 6,183,755.57/1,622.10
6. Step 6: Final answer
   x = 3,812.20