Finding the Third Proportional to 386,158.50 and 850,851

Step by Step Solution

1. Step 1: Write the proportion equation
   386,158.50 : 850,851 = 850,851 : x
2. Step 2: Convert to fraction form
   386,158.50/850,851 = 850,851/x
3. Step 3: Cross multiply
   386,158.50x = 850,851 × 850,851
4. Step 4: Simplify right side
   386,158.50x = 723,947,424,201
5. Step 5: Solve for x
   x = 723,947,424,201/386,158.50
6. Step 6: Final answer
   x = 1,874,741.65