Finding the Third Proportional to 860,408 and 1,336,632

Step by Step Solution

1. Step 1: Write the proportion equation
   860,408 : 1,336,632 = 1,336,632 : x
2. Step 2: Convert to fraction form
   860,408/1,336,632 = 1,336,632/x
3. Step 3: Cross multiply
   860,408x = 1,336,632 × 1,336,632
4. Step 4: Simplify right side
   860,408x = 1,786,585,103,424
5. Step 5: Solve for x
   x = 1,786,585,103,424/860,408
6. Step 6: Final answer
   x = 2,076,439.44