Finding the Third Proportional to 4,035,210 and 8,707,878

Step by Step Solution

1. Step 1: Write the proportion equation
   4,035,210 : 8,707,878 = 8,707,878 : x
2. Step 2: Convert to fraction form
   4,035,210/8,707,878 = 8,707,878/x
3. Step 3: Cross multiply
   4,035,210x = 8,707,878 × 8,707,878
4. Step 4: Simplify right side
   4,035,210x = 75,827,139,262,884
5. Step 5: Solve for x
   x = 75,827,139,262,884/4,035,210
6. Step 6: Final answer
   x = 18,791,373.75