Finding the Third Proportional to 276,333 and 405,434.25

Step by Step Solution

1. Step 1: Write the proportion equation
   276,333 : 405,434.25 = 405,434.25 : x
2. Step 2: Convert to fraction form
   276,333/405,434.25 = 405,434.25/x
3. Step 3: Cross multiply
   276,333x = 405,434.25 × 405,434.25
4. Step 4: Simplify right side
   276,333x = 164,376,931,073.06
5. Step 5: Solve for x
   x = 164,376,931,073.06/276,333
6. Step 6: Final answer
   x = 594,850.89