Finding the Third Proportional to 361,642.50 and 787,556.25

Step by Step Solution

1. Step 1: Write the proportion equation
   361,642.50 : 787,556.25 = 787,556.25 : x
2. Step 2: Convert to fraction form
   361,642.50/787,556.25 = 787,556.25/x
3. Step 3: Cross multiply
   361,642.50x = 787,556.25 × 787,556.25
4. Step 4: Simplify right side
   361,642.50x = 620,244,846,914.06
5. Step 5: Solve for x
   x = 620,244,846,914.06/361,642.50
6. Step 6: Final answer
   x = 1,715,077.31