Finding the Third Proportional to 455,382 and 679,377.75

Step by Step Solution

1. Step 1: Write the proportion equation
   455,382 : 679,377.75 = 679,377.75 : x
2. Step 2: Convert to fraction form
   455,382/679,377.75 = 679,377.75/x
3. Step 3: Cross multiply
   455,382x = 679,377.75 × 679,377.75
4. Step 4: Simplify right side
   455,382x = 461,554,127,195.06
5. Step 5: Solve for x
   x = 461,554,127,195.06/455,382
6. Step 6: Final answer
   x = 1,013,553.74