Finding the Third Proportional to 4,003,656 and 8,291,222

Step by Step Solution

1. Step 1: Write the proportion equation
   4,003,656 : 8,291,222 = 8,291,222 : x
2. Step 2: Convert to fraction form
   4,003,656/8,291,222 = 8,291,222/x
3. Step 3: Cross multiply
   4,003,656x = 8,291,222 × 8,291,222
4. Step 4: Simplify right side
   4,003,656x = 68,744,362,253,284
5. Step 5: Solve for x
   x = 68,744,362,253,284/4,003,656
6. Step 6: Final answer
   x = 17,170,396.82