Finding the Third Proportional to 8,368,922 and 12,931,923

Step by Step Solution

1. Step 1: Write the proportion equation
   8,368,922 : 12,931,923 = 12,931,923 : x
2. Step 2: Convert to fraction form
   8,368,922/12,931,923 = 12,931,923/x
3. Step 3: Cross multiply
   8,368,922x = 12,931,923 × 12,931,923
4. Step 4: Simplify right side
   8,368,922x = 167,234,632,477,929
5. Step 5: Solve for x
   x = 167,234,632,477,929/8,368,922
6. Step 6: Final answer
   x = 19,982,816.48