Finding the Third Proportional to 690,258 and 1,476,471

Step by Step Solution

1. Step 1: Write the proportion equation
   690,258 : 1,476,471 = 1,476,471 : x
2. Step 2: Convert to fraction form
   690,258/1,476,471 = 1,476,471/x
3. Step 3: Cross multiply
   690,258x = 1,476,471 × 1,476,471
4. Step 4: Simplify right side
   690,258x = 2,179,966,613,841
5. Step 5: Solve for x
   x = 2,179,966,613,841/690,258
6. Step 6: Final answer
   x = 3,158,191.02