Finding the Third Proportional to 3,213,862 and 4,359,909

Step by Step Solution

1. Step 1: Write the proportion equation
   3,213,862 : 4,359,909 = 4,359,909 : x
2. Step 2: Convert to fraction form
   3,213,862/4,359,909 = 4,359,909/x
3. Step 3: Cross multiply
   3,213,862x = 4,359,909 × 4,359,909
4. Step 4: Simplify right side
   3,213,862x = 19,008,806,488,281
5. Step 5: Solve for x
   x = 19,008,806,488,281/3,213,862
6. Step 6: Final answer
   x = 5,914,630.59