Finding the Third Proportional to 1,984.10 and 2,916.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.10 : 2,916.89 = 2,916.89 : x
2. Step 2: Convert to fraction form
   1,984.10/2,916.89 = 2,916.89/x
3. Step 3: Cross multiply
   1,984.10x = 2,916.89 × 2,916.89
4. Step 4: Simplify right side
   1,984.10x = 8,508,246.65
5. Step 5: Solve for x
   x = 8,508,246.65/1,984.10
6. Step 6: Final answer
   x = 4,288.20