Finding the Third Proportional to 3,401,378 and 5,156,056

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401,378 : 5,156,056 = 5,156,056 : x
2. Step 2: Convert to fraction form
   3,401,378/5,156,056 = 5,156,056/x
3. Step 3: Cross multiply
   3,401,378x = 5,156,056 × 5,156,056
4. Step 4: Simplify right side
   3,401,378x = 26,584,913,475,136
5. Step 5: Solve for x
   x = 26,584,913,475,136/3,401,378
6. Step 6: Final answer
   x = 7,815,924.45