Finding the Third Proportional to 1,091.25 and 2,385

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.25 : 2,385 = 2,385 : x
2. Step 2: Convert to fraction form
   1,091.25/2,385 = 2,385/x
3. Step 3: Cross multiply
   1,091.25x = 2,385 × 2,385
4. Step 4: Simplify right side
   1,091.25x = 5,688,225
5. Step 5: Solve for x
   x = 5,688,225/1,091.25
6. Step 6: Final answer
   x = 5,212.58