Finding the Third Proportional to 3,933,170 and 8,646,862

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933,170 : 8,646,862 = 8,646,862 : x
2. Step 2: Convert to fraction form
   3,933,170/8,646,862 = 8,646,862/x
3. Step 3: Cross multiply
   3,933,170x = 8,646,862 × 8,646,862
4. Step 4: Simplify right side
   3,933,170x = 74,768,222,447,044
5. Step 5: Solve for x
   x = 74,768,222,447,044/3,933,170
6. Step 6: Final answer
   x = 19,009,659.50