Finding the Third Proportional to 3,505,840 and 5,413,560

Step by Step Solution

1. Step 1: Write the proportion equation
   3,505,840 : 5,413,560 = 5,413,560 : x
2. Step 2: Convert to fraction form
   3,505,840/5,413,560 = 5,413,560/x
3. Step 3: Cross multiply
   3,505,840x = 5,413,560 × 5,413,560
4. Step 4: Simplify right side
   3,505,840x = 29,306,631,873,600
5. Step 5: Solve for x
   x = 29,306,631,873,600/3,505,840
6. Step 6: Final answer
   x = 8,359,375.18