Finding the Third Proportional to 1,919,888 and 4,124,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,888 : 4,124,690 = 4,124,690 : x
2. Step 2: Convert to fraction form
   1,919,888/4,124,690 = 4,124,690/x
3. Step 3: Cross multiply
   1,919,888x = 4,124,690 × 4,124,690
4. Step 4: Simplify right side
   1,919,888x = 17,013,067,596,100
5. Step 5: Solve for x
   x = 17,013,067,596,100/1,919,888
6. Step 6: Final answer
   x = 8,861,489.63