Finding the Third Proportional to 276,291.38 and 610,653

Step by Step Solution

1. Step 1: Write the proportion equation
   276,291.38 : 610,653 = 610,653 : x
2. Step 2: Convert to fraction form
   276,291.38/610,653 = 610,653/x
3. Step 3: Cross multiply
   276,291.38x = 610,653 × 610,653
4. Step 4: Simplify right side
   276,291.38x = 372,897,086,409
5. Step 5: Solve for x
   x = 372,897,086,409/276,291.38
6. Step 6: Final answer
   x = 1,349,651.56