Finding the Third Proportional to 678,822 and 1,425,900

Step by Step Solution

1. Step 1: Write the proportion equation
   678,822 : 1,425,900 = 1,425,900 : x
2. Step 2: Convert to fraction form
   678,822/1,425,900 = 1,425,900/x
3. Step 3: Cross multiply
   678,822x = 1,425,900 × 1,425,900
4. Step 4: Simplify right side
   678,822x = 2,033,190,810,000
5. Step 5: Solve for x
   x = 2,033,190,810,000/678,822
6. Step 6: Final answer
   x = 2,995,175.19