Finding the Third Proportional to 1,111.22 and 1,621.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.22 : 1,621.13 = 1,621.13 : x
2. Step 2: Convert to fraction form
   1,111.22/1,621.13 = 1,621.13/x
3. Step 3: Cross multiply
   1,111.22x = 1,621.13 × 1,621.13
4. Step 4: Simplify right side
   1,111.22x = 2,628,046.27
5. Step 5: Solve for x
   x = 2,628,046.27/1,111.22
6. Step 6: Final answer
   x = 2,365.01