Finding the Third Proportional to 831,348 and 1,217,404

Step by Step Solution

1. Step 1: Write the proportion equation
   831,348 : 1,217,404 = 1,217,404 : x
2. Step 2: Convert to fraction form
   831,348/1,217,404 = 1,217,404/x
3. Step 3: Cross multiply
   831,348x = 1,217,404 × 1,217,404
4. Step 4: Simplify right side
   831,348x = 1,482,072,499,216
5. Step 5: Solve for x
   x = 1,482,072,499,216/831,348
6. Step 6: Final answer
   x = 1,782,734.18