Finding the Third Proportional to 864,632 and 1,381,266

Step by Step Solution

1. Step 1: Write the proportion equation
   864,632 : 1,381,266 = 1,381,266 : x
2. Step 2: Convert to fraction form
   864,632/1,381,266 = 1,381,266/x
3. Step 3: Cross multiply
   864,632x = 1,381,266 × 1,381,266
4. Step 4: Simplify right side
   864,632x = 1,907,895,762,756
5. Step 5: Solve for x
   x = 1,907,895,762,756/864,632
6. Step 6: Final answer
   x = 2,206,598.60