Finding the Third Proportional to 830,171 and 1,215,651

Step by Step Solution

1. Step 1: Write the proportion equation
   830,171 : 1,215,651 = 1,215,651 : x
2. Step 2: Convert to fraction form
   830,171/1,215,651 = 1,215,651/x
3. Step 3: Cross multiply
   830,171x = 1,215,651 × 1,215,651
4. Step 4: Simplify right side
   830,171x = 1,477,807,353,801
5. Step 5: Solve for x
   x = 1,477,807,353,801/830,171
6. Step 6: Final answer
   x = 1,780,124.04