Finding the Third Proportional to 269,457 and 374,654.25

Step by Step Solution

1. Step 1: Write the proportion equation
   269,457 : 374,654.25 = 374,654.25 : x
2. Step 2: Convert to fraction form
   269,457/374,654.25 = 374,654.25/x
3. Step 3: Cross multiply
   269,457x = 374,654.25 × 374,654.25
4. Step 4: Simplify right side
   269,457x = 140,365,807,043.06
5. Step 5: Solve for x
   x = 140,365,807,043.06/269,457
6. Step 6: Final answer
   x = 520,920.99