Finding the Third Proportional to 2,139,594 and 4,377,564

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,594 : 4,377,564 = 4,377,564 : x
2. Step 2: Convert to fraction form
   2,139,594/4,377,564 = 4,377,564/x
3. Step 3: Cross multiply
   2,139,594x = 4,377,564 × 4,377,564
4. Step 4: Simplify right side
   2,139,594x = 19,163,066,574,096
5. Step 5: Solve for x
   x = 19,163,066,574,096/2,139,594
6. Step 6: Final answer
   x = 8,956,403.21