Finding the Third Proportional to 5,664,078 and 8,494,146

Step by Step Solution

1. Step 1: Write the proportion equation
   5,664,078 : 8,494,146 = 8,494,146 : x
2. Step 2: Convert to fraction form
   5,664,078/8,494,146 = 8,494,146/x
3. Step 3: Cross multiply
   5,664,078x = 8,494,146 × 8,494,146
4. Step 4: Simplify right side
   5,664,078x = 72,150,516,269,316
5. Step 5: Solve for x
   x = 72,150,516,269,316/5,664,078
6. Step 6: Final answer
   x = 12,738,263.19