Finding the Third Proportional to 3,642,578 and 5,345,769

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642,578 : 5,345,769 = 5,345,769 : x
2. Step 2: Convert to fraction form
   3,642,578/5,345,769 = 5,345,769/x
3. Step 3: Cross multiply
   3,642,578x = 5,345,769 × 5,345,769
4. Step 4: Simplify right side
   3,642,578x = 28,577,246,201,361
5. Step 5: Solve for x
   x = 28,577,246,201,361/3,642,578
6. Step 6: Final answer
   x = 7,845,335.42