Finding the Third Proportional to 1,415.94 and 2,187.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.94 : 2,187.06 = 2,187.06 : x
2. Step 2: Convert to fraction form
   1,415.94/2,187.06 = 2,187.06/x
3. Step 3: Cross multiply
   1,415.94x = 2,187.06 × 2,187.06
4. Step 4: Simplify right side
   1,415.94x = 4,783,242.38
5. Step 5: Solve for x
   x = 4,783,242.38/1,415.94
6. Step 6: Final answer
   x = 3,378.15