Finding the Third Proportional to 5,430,426 and 8,051,673

Step by Step Solution

1. Step 1: Write the proportion equation
   5,430,426 : 8,051,673 = 8,051,673 : x
2. Step 2: Convert to fraction form
   5,430,426/8,051,673 = 8,051,673/x
3. Step 3: Cross multiply
   5,430,426x = 8,051,673 × 8,051,673
4. Step 4: Simplify right side
   5,430,426x = 64,829,438,098,929
5. Step 5: Solve for x
   x = 64,829,438,098,929/5,430,426
6. Step 6: Final answer
   x = 11,938,186.45