Finding the Third Proportional to 4,010,870 and 8,661,118

Step by Step Solution

1. Step 1: Write the proportion equation
   4,010,870 : 8,661,118 = 8,661,118 : x
2. Step 2: Convert to fraction form
   4,010,870/8,661,118 = 8,661,118/x
3. Step 3: Cross multiply
   4,010,870x = 8,661,118 × 8,661,118
4. Step 4: Simplify right side
   4,010,870x = 75,014,965,009,924
5. Step 5: Solve for x
   x = 75,014,965,009,924/4,010,870
6. Step 6: Final answer
   x = 18,702,916.08