Finding the Third Proportional to 3,405,210 and 5,078,281

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405,210 : 5,078,281 = 5,078,281 : x
2. Step 2: Convert to fraction form
   3,405,210/5,078,281 = 5,078,281/x
3. Step 3: Cross multiply
   3,405,210x = 5,078,281 × 5,078,281
4. Step 4: Simplify right side
   3,405,210x = 25,788,937,914,961
5. Step 5: Solve for x
   x = 25,788,937,914,961/3,405,210
6. Step 6: Final answer
   x = 7,573,376.65