Finding the Third Proportional to 772,740 and 1,678,482

Step by Step Solution

1. Step 1: Write the proportion equation
   772,740 : 1,678,482 = 1,678,482 : x
2. Step 2: Convert to fraction form
   772,740/1,678,482 = 1,678,482/x
3. Step 3: Cross multiply
   772,740x = 1,678,482 × 1,678,482
4. Step 4: Simplify right side
   772,740x = 2,817,301,824,324
5. Step 5: Solve for x
   x = 2,817,301,824,324/772,740
6. Step 6: Final answer
   x = 3,645,859.96