Finding the Third Proportional to 4,221,026 and 8,591,102

Step by Step Solution

1. Step 1: Write the proportion equation
   4,221,026 : 8,591,102 = 8,591,102 : x
2. Step 2: Convert to fraction form
   4,221,026/8,591,102 = 8,591,102/x
3. Step 3: Cross multiply
   4,221,026x = 8,591,102 × 8,591,102
4. Step 4: Simplify right side
   4,221,026x = 73,807,033,574,404
5. Step 5: Solve for x
   x = 73,807,033,574,404/4,221,026
6. Step 6: Final answer
   x = 17,485,567.15