Finding the Third Proportional to 2,145.50 and 4,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.50 : 4,740.50 = 4,740.50 : x
2. Step 2: Convert to fraction form
   2,145.50/4,740.50 = 4,740.50/x
3. Step 3: Cross multiply
   2,145.50x = 4,740.50 × 4,740.50
4. Step 4: Simplify right side
   2,145.50x = 22,472,340.25
5. Step 5: Solve for x
   x = 22,472,340.25/2,145.50
6. Step 6: Final answer
   x = 10,474.17