Finding the Third Proportional to 679,315.50 and 1,388,124

Step by Step Solution

1. Step 1: Write the proportion equation
   679,315.50 : 1,388,124 = 1,388,124 : x
2. Step 2: Convert to fraction form
   679,315.50/1,388,124 = 1,388,124/x
3. Step 3: Cross multiply
   679,315.50x = 1,388,124 × 1,388,124
4. Step 4: Simplify right side
   679,315.50x = 1,926,888,239,376
5. Step 5: Solve for x
   x = 1,926,888,239,376/679,315.50
6. Step 6: Final answer
   x = 2,836,514.46