Finding the Third Proportional to 831,460 and 1,339,070

Step by Step Solution

1. Step 1: Write the proportion equation
   831,460 : 1,339,070 = 1,339,070 : x
2. Step 2: Convert to fraction form
   831,460/1,339,070 = 1,339,070/x
3. Step 3: Cross multiply
   831,460x = 1,339,070 × 1,339,070
4. Step 4: Simplify right side
   831,460x = 1,793,108,464,900
5. Step 5: Solve for x
   x = 1,793,108,464,900/831,460
6. Step 6: Final answer
   x = 2,156,578.15