Finding the Third Proportional to 141,201 and 310,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,201 : 310,388.50 = 310,388.50 : x
2. Step 2: Convert to fraction form
   141,201/310,388.50 = 310,388.50/x
3. Step 3: Cross multiply
   141,201x = 310,388.50 × 310,388.50
4. Step 4: Simplify right side
   141,201x = 96,341,020,932.25
5. Step 5: Solve for x
   x = 96,341,020,932.25/141,201
6. Step 6: Final answer
   x = 682,297.02