Finding the Third Proportional to 3,953,772 and 8,677,368

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,772 : 8,677,368 = 8,677,368 : x
2. Step 2: Convert to fraction form
   3,953,772/8,677,368 = 8,677,368/x
3. Step 3: Cross multiply
   3,953,772x = 8,677,368 × 8,677,368
4. Step 4: Simplify right side
   3,953,772x = 75,296,715,407,424
5. Step 5: Solve for x
   x = 75,296,715,407,424/3,953,772
6. Step 6: Final answer
   x = 19,044,273.52