Finding the Third Proportional to 5,678,814 and 12,315,784

Step by Step Solution

1. Step 1: Write the proportion equation
   5,678,814 : 12,315,784 = 12,315,784 : x
2. Step 2: Convert to fraction form
   5,678,814/12,315,784 = 12,315,784/x
3. Step 3: Cross multiply
   5,678,814x = 12,315,784 × 12,315,784
4. Step 4: Simplify right side
   5,678,814x = 151,678,535,534,656
5. Step 5: Solve for x
   x = 151,678,535,534,656/5,678,814
6. Step 6: Final answer
   x = 26,709,544.55