Finding the Third Proportional to 5,407,078 and 8,369,464

Step by Step Solution

1. Step 1: Write the proportion equation
   5,407,078 : 8,369,464 = 8,369,464 : x
2. Step 2: Convert to fraction form
   5,407,078/8,369,464 = 8,369,464/x
3. Step 3: Cross multiply
   5,407,078x = 8,369,464 × 8,369,464
4. Step 4: Simplify right side
   5,407,078x = 70,047,927,647,296
5. Step 5: Solve for x
   x = 70,047,927,647,296/5,407,078
6. Step 6: Final answer
   x = 12,954,857.99