Finding the Third Proportional to 1,121,080 and 1,693,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121,080 : 1,693,288 = 1,693,288 : x
2. Step 2: Convert to fraction form
   1,121,080/1,693,288 = 1,693,288/x
3. Step 3: Cross multiply
   1,121,080x = 1,693,288 × 1,693,288
4. Step 4: Simplify right side
   1,121,080x = 2,867,224,250,944
5. Step 5: Solve for x
   x = 2,867,224,250,944/1,121,080
6. Step 6: Final answer
   x = 2,557,555.44