Finding the Third Proportional to 377,694.56 and 815,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,694.56 : 815,710.50 = 815,710.50 : x
2. Step 2: Convert to fraction form
   377,694.56/815,710.50 = 815,710.50/x
3. Step 3: Cross multiply
   377,694.56x = 815,710.50 × 815,710.50
4. Step 4: Simplify right side
   377,694.56x = 665,383,619,810.25
5. Step 5: Solve for x
   x = 665,383,619,810.25/377,694.56
6. Step 6: Final answer
   x = 1,761,697.64