Finding the Third Proportional to 5,870,978 and 8,267,628

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870,978 : 8,267,628 = 8,267,628 : x
2. Step 2: Convert to fraction form
   5,870,978/8,267,628 = 8,267,628/x
3. Step 3: Cross multiply
   5,870,978x = 8,267,628 × 8,267,628
4. Step 4: Simplify right side
   5,870,978x = 68,353,672,746,384
5. Step 5: Solve for x
   x = 68,353,672,746,384/5,870,978
6. Step 6: Final answer
   x = 11,642,638.20