Finding the Third Proportional to 378,375 and 816,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   378,375 : 816,481.50 = 816,481.50 : x
2. Step 2: Convert to fraction form
   378,375/816,481.50 = 816,481.50/x
3. Step 3: Cross multiply
   378,375x = 816,481.50 × 816,481.50
4. Step 4: Simplify right side
   378,375x = 666,642,039,842.25
5. Step 5: Solve for x
   x = 666,642,039,842.25/378,375
6. Step 6: Final answer
   x = 1,761,855.41