Finding the Third Proportional to 4,020,005 and 8,704,210

Step by Step Solution

1. Step 1: Write the proportion equation
   4,020,005 : 8,704,210 = 8,704,210 : x
2. Step 2: Convert to fraction form
   4,020,005/8,704,210 = 8,704,210/x
3. Step 3: Cross multiply
   4,020,005x = 8,704,210 × 8,704,210
4. Step 4: Simplify right side
   4,020,005x = 75,763,271,724,100
5. Step 5: Solve for x
   x = 75,763,271,724,100/4,020,005
6. Step 6: Final answer
   x = 18,846,561.56