Finding the Third Proportional to 5,042,692 and 10,510,856

Step by Step Solution

1. Step 1: Write the proportion equation
   5,042,692 : 10,510,856 = 10,510,856 : x
2. Step 2: Convert to fraction form
   5,042,692/10,510,856 = 10,510,856/x
3. Step 3: Cross multiply
   5,042,692x = 10,510,856 × 10,510,856
4. Step 4: Simplify right side
   5,042,692x = 110,478,093,852,736
5. Step 5: Solve for x
   x = 110,478,093,852,736/5,042,692
6. Step 6: Final answer
   x = 21,908,554.77