Finding the Third Proportional to 3,215,422 and 7,078,537

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215,422 : 7,078,537 = 7,078,537 : x
2. Step 2: Convert to fraction form
   3,215,422/7,078,537 = 7,078,537/x
3. Step 3: Cross multiply
   3,215,422x = 7,078,537 × 7,078,537
4. Step 4: Simplify right side
   3,215,422x = 50,105,686,060,369
5. Step 5: Solve for x
   x = 50,105,686,060,369/3,215,422
6. Step 6: Final answer
   x = 15,582,926.93