Finding the Third Proportional to 1,225.13 and 1,870.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.13 : 1,870.17 = 1,870.17 : x
2. Step 2: Convert to fraction form
   1,225.13/1,870.17 = 1,870.17/x
3. Step 3: Cross multiply
   1,225.13x = 1,870.17 × 1,870.17
4. Step 4: Simplify right side
   1,225.13x = 3,497,542.84
5. Step 5: Solve for x
   x = 3,497,542.84/1,225.13
6. Step 6: Final answer
   x = 2,854.85