Finding the Third Proportional to 1,368,400 and 2,123,984

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,400 : 2,123,984 = 2,123,984 : x
2. Step 2: Convert to fraction form
   1,368,400/2,123,984 = 2,123,984/x
3. Step 3: Cross multiply
   1,368,400x = 2,123,984 × 2,123,984
4. Step 4: Simplify right side
   1,368,400x = 4,511,308,032,256
5. Step 5: Solve for x
   x = 4,511,308,032,256/1,368,400
6. Step 6: Final answer
   x = 3,296,775.82