Finding the Third Proportional to 381,801.50 and 790,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   381,801.50 : 790,025.50 = 790,025.50 : x
2. Step 2: Convert to fraction form
   381,801.50/790,025.50 = 790,025.50/x
3. Step 3: Cross multiply
   381,801.50x = 790,025.50 × 790,025.50
4. Step 4: Simplify right side
   381,801.50x = 624,140,290,650.25
5. Step 5: Solve for x
   x = 624,140,290,650.25/381,801.50
6. Step 6: Final answer
   x = 1,634,724.56