Finding the Third Proportional to 3,906,151 and 8,557,047

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906,151 : 8,557,047 = 8,557,047 : x
2. Step 2: Convert to fraction form
   3,906,151/8,557,047 = 8,557,047/x
3. Step 3: Cross multiply
   3,906,151x = 8,557,047 × 8,557,047
4. Step 4: Simplify right side
   3,906,151x = 73,223,053,360,209
5. Step 5: Solve for x
   x = 73,223,053,360,209/3,906,151
6. Step 6: Final answer
   x = 18,745,576.75