Finding the Third Proportional to 690,582 and 1,429,116

Step by Step Solution

1. Step 1: Write the proportion equation
   690,582 : 1,429,116 = 1,429,116 : x
2. Step 2: Convert to fraction form
   690,582/1,429,116 = 1,429,116/x
3. Step 3: Cross multiply
   690,582x = 1,429,116 × 1,429,116
4. Step 4: Simplify right side
   690,582x = 2,042,372,541,456
5. Step 5: Solve for x
   x = 2,042,372,541,456/690,582
6. Step 6: Final answer
   x = 2,957,465.65