Finding the Third Proportional to 4,066,910 and 8,764,164

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066,910 : 8,764,164 = 8,764,164 : x
2. Step 2: Convert to fraction form
   4,066,910/8,764,164 = 8,764,164/x
3. Step 3: Cross multiply
   4,066,910x = 8,764,164 × 8,764,164
4. Step 4: Simplify right side
   4,066,910x = 76,810,570,618,896
5. Step 5: Solve for x
   x = 76,810,570,618,896/4,066,910
6. Step 6: Final answer
   x = 18,886,715.13