Finding the Third Proportional to 3,874,638 and 5,318,829

Step by Step Solution

1. Step 1: Write the proportion equation
   3,874,638 : 5,318,829 = 5,318,829 : x
2. Step 2: Convert to fraction form
   3,874,638/5,318,829 = 5,318,829/x
3. Step 3: Cross multiply
   3,874,638x = 5,318,829 × 5,318,829
4. Step 4: Simplify right side
   3,874,638x = 28,289,941,931,241
5. Step 5: Solve for x
   x = 28,289,941,931,241/3,874,638
6. Step 6: Final answer
   x = 7,301,312.26