Finding the Third Proportional to 1,609.31 and 3,490.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.31 : 3,490.13 = 3,490.13 : x
2. Step 2: Convert to fraction form
   1,609.31/3,490.13 = 3,490.13/x
3. Step 3: Cross multiply
   1,609.31x = 3,490.13 × 3,490.13
4. Step 4: Simplify right side
   1,609.31x = 12,180,972.52
5. Step 5: Solve for x
   x = 12,180,972.52/1,609.31
6. Step 6: Final answer
   x = 7,569.05