Finding the Third Proportional to 1,621.38 and 3,465.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.38 : 3,465.50 = 3,465.50 : x
2. Step 2: Convert to fraction form
   1,621.38/3,465.50 = 3,465.50/x
3. Step 3: Cross multiply
   1,621.38x = 3,465.50 × 3,465.50
4. Step 4: Simplify right side
   1,621.38x = 12,009,690.25
5. Step 5: Solve for x
   x = 12,009,690.25/1,621.38
6. Step 6: Final answer
   x = 7,407.10