Finding the Third Proportional to 830,086 and 1,215,571

Step by Step Solution

1. Step 1: Write the proportion equation
   830,086 : 1,215,571 = 1,215,571 : x
2. Step 2: Convert to fraction form
   830,086/1,215,571 = 1,215,571/x
3. Step 3: Cross multiply
   830,086x = 1,215,571 × 1,215,571
4. Step 4: Simplify right side
   830,086x = 1,477,612,856,041
5. Step 5: Solve for x
   x = 1,477,612,856,041/830,086
6. Step 6: Final answer
   x = 1,780,072.01