Finding the Third Proportional to 5,430,429 and 8,051,676

Step by Step Solution

1. Step 1: Write the proportion equation
   5,430,429 : 8,051,676 = 8,051,676 : x
2. Step 2: Convert to fraction form
   5,430,429/8,051,676 = 8,051,676/x
3. Step 3: Cross multiply
   5,430,429x = 8,051,676 × 8,051,676
4. Step 4: Simplify right side
   5,430,429x = 64,829,486,408,976
5. Step 5: Solve for x
   x = 64,829,486,408,976/5,430,429
6. Step 6: Final answer
   x = 11,938,188.75