Finding the Third Proportional to 3,555,102 and 7,878,921

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555,102 : 7,878,921 = 7,878,921 : x
2. Step 2: Convert to fraction form
   3,555,102/7,878,921 = 7,878,921/x
3. Step 3: Cross multiply
   3,555,102x = 7,878,921 × 7,878,921
4. Step 4: Simplify right side
   3,555,102x = 62,077,396,124,241
5. Step 5: Solve for x
   x = 62,077,396,124,241/3,555,102
6. Step 6: Final answer
   x = 17,461,495.09