Finding the Third Proportional to 361,118.25 and 768,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,118.25 : 768,892.50 = 768,892.50 : x
2. Step 2: Convert to fraction form
   361,118.25/768,892.50 = 768,892.50/x
3. Step 3: Cross multiply
   361,118.25x = 768,892.50 × 768,892.50
4. Step 4: Simplify right side
   361,118.25x = 591,195,676,556.25
5. Step 5: Solve for x
   x = 591,195,676,556.25/361,118.25
6. Step 6: Final answer
   x = 1,637,124.89