Finding the Third Proportional to 361,516.50 and 787,401

Step by Step Solution

1. Step 1: Write the proportion equation
   361,516.50 : 787,401 = 787,401 : x
2. Step 2: Convert to fraction form
   361,516.50/787,401 = 787,401/x
3. Step 3: Cross multiply
   361,516.50x = 787,401 × 787,401
4. Step 4: Simplify right side
   361,516.50x = 620,000,334,801
5. Step 5: Solve for x
   x = 620,000,334,801/361,516.50
6. Step 6: Final answer
   x = 1,714,998.72