Finding the Third Proportional to 4,171,953 and 8,663,652

Step by Step Solution

1. Step 1: Write the proportion equation
   4,171,953 : 8,663,652 = 8,663,652 : x
2. Step 2: Convert to fraction form
   4,171,953/8,663,652 = 8,663,652/x
3. Step 3: Cross multiply
   4,171,953x = 8,663,652 × 8,663,652
4. Step 4: Simplify right side
   4,171,953x = 75,058,865,977,104
5. Step 5: Solve for x
   x = 75,058,865,977,104/4,171,953
6. Step 6: Final answer
   x = 17,991,301.91