Finding the Third Proportional to 831,128 and 1,789,376

Step by Step Solution

1. Step 1: Write the proportion equation
   831,128 : 1,789,376 = 1,789,376 : x
2. Step 2: Convert to fraction form
   831,128/1,789,376 = 1,789,376/x
3. Step 3: Cross multiply
   831,128x = 1,789,376 × 1,789,376
4. Step 4: Simplify right side
   831,128x = 3,201,866,469,376
5. Step 5: Solve for x
   x = 3,201,866,469,376/831,128
6. Step 6: Final answer
   x = 3,852,434.85