Finding the Third Proportional to 553,864 and 1,201,040

Step by Step Solution

1. Step 1: Write the proportion equation
   553,864 : 1,201,040 = 1,201,040 : x
2. Step 2: Convert to fraction form
   553,864/1,201,040 = 1,201,040/x
3. Step 3: Cross multiply
   553,864x = 1,201,040 × 1,201,040
4. Step 4: Simplify right side
   553,864x = 1,442,497,081,600
5. Step 5: Solve for x
   x = 1,442,497,081,600/553,864
6. Step 6: Final answer
   x = 2,604,424.70