Finding the Third Proportional to 2,857,159 and 3,880,329

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857,159 : 3,880,329 = 3,880,329 : x
2. Step 2: Convert to fraction form
   2,857,159/3,880,329 = 3,880,329/x
3. Step 3: Cross multiply
   2,857,159x = 3,880,329 × 3,880,329
4. Step 4: Simplify right side
   2,857,159x = 15,056,953,148,241
5. Step 5: Solve for x
   x = 15,056,953,148,241/2,857,159
6. Step 6: Final answer
   x = 5,269,903.83