Finding the Third Proportional to 831,584 and 1,339,248

Step by Step Solution

1. Step 1: Write the proportion equation
   831,584 : 1,339,248 = 1,339,248 : x
2. Step 2: Convert to fraction form
   831,584/1,339,248 = 1,339,248/x
3. Step 3: Cross multiply
   831,584x = 1,339,248 × 1,339,248
4. Step 4: Simplify right side
   831,584x = 1,793,585,205,504
5. Step 5: Solve for x
   x = 1,793,585,205,504/831,584
6. Step 6: Final answer
   x = 2,156,829.86