Finding the Third Proportional to 3,405,196 and 5,078,262

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405,196 : 5,078,262 = 5,078,262 : x
2. Step 2: Convert to fraction form
   3,405,196/5,078,262 = 5,078,262/x
3. Step 3: Cross multiply
   3,405,196x = 5,078,262 × 5,078,262
4. Step 4: Simplify right side
   3,405,196x = 25,788,744,940,644
5. Step 5: Solve for x
   x = 25,788,744,940,644/3,405,196
6. Step 6: Final answer
   x = 7,573,351.12