Finding the Third Proportional to 5,430,430 and 8,051,678

Step by Step Solution

1. Step 1: Write the proportion equation
   5,430,430 : 8,051,678 = 8,051,678 : x
2. Step 2: Convert to fraction form
   5,430,430/8,051,678 = 8,051,678/x
3. Step 3: Cross multiply
   5,430,430x = 8,051,678 × 8,051,678
4. Step 4: Simplify right side
   5,430,430x = 64,829,518,615,684
5. Step 5: Solve for x
   x = 64,829,518,615,684/5,430,430
6. Step 6: Final answer
   x = 11,938,192.48