Finding the Third Proportional to 771,840 and 1,645,632

Step by Step Solution

1. Step 1: Write the proportion equation
   771,840 : 1,645,632 = 1,645,632 : x
2. Step 2: Convert to fraction form
   771,840/1,645,632 = 1,645,632/x
3. Step 3: Cross multiply
   771,840x = 1,645,632 × 1,645,632
4. Step 4: Simplify right side
   771,840x = 2,708,104,679,424
5. Step 5: Solve for x
   x = 2,708,104,679,424/771,840
6. Step 6: Final answer
   x = 3,508,634.79