Finding the Third Proportional to 3,658,863 and 5,357,074

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658,863 : 5,357,074 = 5,357,074 : x
2. Step 2: Convert to fraction form
   3,658,863/5,357,074 = 5,357,074/x
3. Step 3: Cross multiply
   3,658,863x = 5,357,074 × 5,357,074
4. Step 4: Simplify right side
   3,658,863x = 28,698,241,841,476
5. Step 5: Solve for x
   x = 28,698,241,841,476/3,658,863
6. Step 6: Final answer
   x = 7,843,486.31