Finding the Third Proportional to 342,401 and 824,874

Step by Step Solution

1. Step 1: Write the proportion equation
   342,401 : 824,874 = 824,874 : x
2. Step 2: Convert to fraction form
   342,401/824,874 = 824,874/x
3. Step 3: Cross multiply
   342,401x = 824,874 × 824,874
4. Step 4: Simplify right side
   342,401x = 680,417,115,876
5. Step 5: Solve for x
   x = 680,417,115,876/342,401
6. Step 6: Final answer
   x = 1,987,193.72