Finding the Third Proportional to 3,291,390 and 4,367,322

Step by Step Solution

1. Step 1: Write the proportion equation
   3,291,390 : 4,367,322 = 4,367,322 : x
2. Step 2: Convert to fraction form
   3,291,390/4,367,322 = 4,367,322/x
3. Step 3: Cross multiply
   3,291,390x = 4,367,322 × 4,367,322
4. Step 4: Simplify right side
   3,291,390x = 19,073,501,451,684
5. Step 5: Solve for x
   x = 19,073,501,451,684/3,291,390
6. Step 6: Final answer
   x = 5,794,968.52