Finding the Third Proportional to 5,590,287 and 8,352,009

Step by Step Solution

1. Step 1: Write the proportion equation
   5,590,287 : 8,352,009 = 8,352,009 : x
2. Step 2: Convert to fraction form
   5,590,287/8,352,009 = 8,352,009/x
3. Step 3: Cross multiply
   5,590,287x = 8,352,009 × 8,352,009
4. Step 4: Simplify right side
   5,590,287x = 69,756,054,336,081
5. Step 5: Solve for x
   x = 69,756,054,336,081/5,590,287
6. Step 6: Final answer
   x = 12,478,081.06