Finding the Third Proportional to 1,369.69 and 2,225.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.69 : 2,225.34 = 2,225.34 : x
2. Step 2: Convert to fraction form
   1,369.69/2,225.34 = 2,225.34/x
3. Step 3: Cross multiply
   1,369.69x = 2,225.34 × 2,225.34
4. Step 4: Simplify right side
   1,369.69x = 4,952,154.81
5. Step 5: Solve for x
   x = 4,952,154.81/1,369.69
6. Step 6: Final answer
   x = 3,615.54