Finding the Third Proportional to 1,234.69 and 1,974.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,234.69 : 1,974.09 = 1,974.09 : x
2. Step 2: Convert to fraction form
   1,234.69/1,974.09 = 1,974.09/x
3. Step 3: Cross multiply
   1,234.69x = 1,974.09 × 1,974.09
4. Step 4: Simplify right side
   1,234.69x = 3,897,046.13
5. Step 5: Solve for x
   x = 3,897,046.13/1,234.69
6. Step 6: Final answer
   x = 3,156.30