Finding the Third Proportional to 1,891,769 and 4,151,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891,769 : 4,151,440 = 4,151,440 : x
2. Step 2: Convert to fraction form
   1,891,769/4,151,440 = 4,151,440/x
3. Step 3: Cross multiply
   1,891,769x = 4,151,440 × 4,151,440
4. Step 4: Simplify right side
   1,891,769x = 17,234,454,073,600
5. Step 5: Solve for x
   x = 17,234,454,073,600/1,891,769
6. Step 6: Final answer
   x = 9,110,231.78