Finding the Third Proportional to 676,560 and 1,487,040

Step by Step Solution

1. Step 1: Write the proportion equation
   676,560 : 1,487,040 = 1,487,040 : x
2. Step 2: Convert to fraction form
   676,560/1,487,040 = 1,487,040/x
3. Step 3: Cross multiply
   676,560x = 1,487,040 × 1,487,040
4. Step 4: Simplify right side
   676,560x = 2,211,287,961,600
5. Step 5: Solve for x
   x = 2,211,287,961,600/676,560
6. Step 6: Final answer
   x = 3,268,428.46