Finding the Third Proportional to 5,558,694 and 8,305,318

Step by Step Solution

1. Step 1: Write the proportion equation
   5,558,694 : 8,305,318 = 8,305,318 : x
2. Step 2: Convert to fraction form
   5,558,694/8,305,318 = 8,305,318/x
3. Step 3: Cross multiply
   5,558,694x = 8,305,318 × 8,305,318
4. Step 4: Simplify right side
   5,558,694x = 68,978,307,081,124
5. Step 5: Solve for x
   x = 68,978,307,081,124/5,558,694
6. Step 6: Final answer
   x = 12,409,085.13