Finding the Third Proportional to 5,789,586 and 8,515,978

Step by Step Solution

1. Step 1: Write the proportion equation
   5,789,586 : 8,515,978 = 8,515,978 : x
2. Step 2: Convert to fraction form
   5,789,586/8,515,978 = 8,515,978/x
3. Step 3: Cross multiply
   5,789,586x = 8,515,978 × 8,515,978
4. Step 4: Simplify right side
   5,789,586x = 72,521,881,296,484
5. Step 5: Solve for x
   x = 72,521,881,296,484/5,789,586
6. Step 6: Final answer
   x = 12,526,263.76