Finding the Third Proportional to 3,922,964 and 8,465,210

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922,964 : 8,465,210 = 8,465,210 : x
2. Step 2: Convert to fraction form
   3,922,964/8,465,210 = 8,465,210/x
3. Step 3: Cross multiply
   3,922,964x = 8,465,210 × 8,465,210
4. Step 4: Simplify right side
   3,922,964x = 71,659,780,344,100
5. Step 5: Solve for x
   x = 71,659,780,344,100/3,922,964
6. Step 6: Final answer
   x = 18,266,744.31