Finding the Third Proportional to 1,621 and 2,353.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621 : 2,353.50 = 2,353.50 : x
2. Step 2: Convert to fraction form
   1,621/2,353.50 = 2,353.50/x
3. Step 3: Cross multiply
   1,621x = 2,353.50 × 2,353.50
4. Step 4: Simplify right side
   1,621x = 5,538,962.25
5. Step 5: Solve for x
   x = 5,538,962.25/1,621
6. Step 6: Final answer
   x = 3,417.00