Finding the Third Proportional to 375,443.50 and 777,503

Step by Step Solution

1. Step 1: Write the proportion equation
   375,443.50 : 777,503 = 777,503 : x
2. Step 2: Convert to fraction form
   375,443.50/777,503 = 777,503/x
3. Step 3: Cross multiply
   375,443.50x = 777,503 × 777,503
4. Step 4: Simplify right side
   375,443.50x = 604,510,915,009
5. Step 5: Solve for x
   x = 604,510,915,009/375,443.50
6. Step 6: Final answer
   x = 1,610,124.87