Finding the Third Proportional to 379,494 and 815,269.50

Step by Step Solution

1. Step 1: Write the proportion equation
   379,494 : 815,269.50 = 815,269.50 : x
2. Step 2: Convert to fraction form
   379,494/815,269.50 = 815,269.50/x
3. Step 3: Cross multiply
   379,494x = 815,269.50 × 815,269.50
4. Step 4: Simplify right side
   379,494x = 664,664,357,630.25
5. Step 5: Solve for x
   x = 664,664,357,630.25/379,494
6. Step 6: Final answer
   x = 1,751,448.92