Finding the Third Proportional to 743,688 and 1,531,404

Step by Step Solution

1. Step 1: Write the proportion equation
   743,688 : 1,531,404 = 1,531,404 : x
2. Step 2: Convert to fraction form
   743,688/1,531,404 = 1,531,404/x
3. Step 3: Cross multiply
   743,688x = 1,531,404 × 1,531,404
4. Step 4: Simplify right side
   743,688x = 2,345,198,211,216
5. Step 5: Solve for x
   x = 2,345,198,211,216/743,688
6. Step 6: Final answer
   x = 3,153,470.56