Finding the Third Proportional to 1,368,404 and 2,123,990

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,404 : 2,123,990 = 2,123,990 : x
2. Step 2: Convert to fraction form
   1,368,404/2,123,990 = 2,123,990/x
3. Step 3: Cross multiply
   1,368,404x = 2,123,990 × 2,123,990
4. Step 4: Simplify right side
   1,368,404x = 4,511,333,520,100
5. Step 5: Solve for x
   x = 4,511,333,520,100/1,368,404
6. Step 6: Final answer
   x = 3,296,784.81