Finding the Third Proportional to 2,121,791 and 4,341,632

Step by Step Solution

1. Step 1: Write the proportion equation
   2,121,791 : 4,341,632 = 4,341,632 : x
2. Step 2: Convert to fraction form
   2,121,791/4,341,632 = 4,341,632/x
3. Step 3: Cross multiply
   2,121,791x = 4,341,632 × 4,341,632
4. Step 4: Simplify right side
   2,121,791x = 18,849,768,423,424
5. Step 5: Solve for x
   x = 18,849,768,423,424/2,121,791
6. Step 6: Final answer
   x = 8,883,894.98