Finding the Third Proportional to 1,198.50 and 2,430.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198.50 : 2,430.75 = 2,430.75 : x
2. Step 2: Convert to fraction form
   1,198.50/2,430.75 = 2,430.75/x
3. Step 3: Cross multiply
   1,198.50x = 2,430.75 × 2,430.75
4. Step 4: Simplify right side
   1,198.50x = 5,908,545.56
5. Step 5: Solve for x
   x = 5,908,545.56/1,198.50
6. Step 6: Final answer
   x = 4,929.95