Finding the Third Proportional to 3,405,702 and 5,122,905

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405,702 : 5,122,905 = 5,122,905 : x
2. Step 2: Convert to fraction form
   3,405,702/5,122,905 = 5,122,905/x
3. Step 3: Cross multiply
   3,405,702x = 5,122,905 × 5,122,905
4. Step 4: Simplify right side
   3,405,702x = 26,244,155,639,025
5. Step 5: Solve for x
   x = 26,244,155,639,025/3,405,702
6. Step 6: Final answer
   x = 7,705,945.98