Finding the Third Proportional to 1,778,899 and 3,900,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,899 : 3,900,612 = 3,900,612 : x
2. Step 2: Convert to fraction form
   1,778,899/3,900,612 = 3,900,612/x
3. Step 3: Cross multiply
   1,778,899x = 3,900,612 × 3,900,612
4. Step 4: Simplify right side
   1,778,899x = 15,214,773,974,544
5. Step 5: Solve for x
   x = 15,214,773,974,544/1,778,899
6. Step 6: Final answer
   x = 8,552,916.14