Finding the Third Proportional to 5,558,696 and 8,305,321

Step by Step Solution

1. Step 1: Write the proportion equation
   5,558,696 : 8,305,321 = 8,305,321 : x
2. Step 2: Convert to fraction form
   5,558,696/8,305,321 = 8,305,321/x
3. Step 3: Cross multiply
   5,558,696x = 8,305,321 × 8,305,321
4. Step 4: Simplify right side
   5,558,696x = 68,978,356,913,041
5. Step 5: Solve for x
   x = 68,978,356,913,041/5,558,696
6. Step 6: Final answer
   x = 12,409,089.63