Finding the Third Proportional to 1,908,990 and 4,116,870

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908,990 : 4,116,870 = 4,116,870 : x
2. Step 2: Convert to fraction form
   1,908,990/4,116,870 = 4,116,870/x
3. Step 3: Cross multiply
   1,908,990x = 4,116,870 × 4,116,870
4. Step 4: Simplify right side
   1,908,990x = 16,948,618,596,900
5. Step 5: Solve for x
   x = 16,948,618,596,900/1,908,990
6. Step 6: Final answer
   x = 8,878,317.12