Finding the Third Proportional to 141,342 and 307,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,342 : 307,219.50 = 307,219.50 : x
2. Step 2: Convert to fraction form
   141,342/307,219.50 = 307,219.50/x
3. Step 3: Cross multiply
   141,342x = 307,219.50 × 307,219.50
4. Step 4: Simplify right side
   141,342x = 94,383,821,180.25
5. Step 5: Solve for x
   x = 94,383,821,180.25/141,342
6. Step 6: Final answer
   x = 667,769.11